A.I. Explanation:

Correct answer: fundamental

Explanation: The word 'fundamental' is an adjective that describes something as being essential or of primary importance. In this context, it fits grammatically as it modifies 'importance,' indicating that protecting and improving children's health is crucial.

Meaning: 'Fundamental' means something that is basic and essential, indicating that the health of children is a primary concern.

Wrong options:

• determines: Determines is a verb that means to decide or conclude something, which does not fit as it does not describe the nature of importance.
• prevented: Prevented is a past participle verb that refers to stopping something from happening, which does not grammatically fit as it does not modify 'importance.'
• removed: Removed is a past participle verb that means taken away, which does not relate to the concept of importance in this context.
• valid: Valid is an adjective that means acceptable or legitimate, but it does not convey the essential nature of importance in this context.
• progress: Progress is a noun that refers to advancement or improvement, which does not fit as it does not describe the type of importance being discussed.
• remains: Remains is a verb that indicates something continues to exist, which does not fit grammatically as it does not modify 'importance.'

Correct answer: progress

Explanation: The term 'progress' is a noun that refers to forward movement or advancement. It fits grammatically and contextually as it describes the improvements made in children's health over the past decades.

Meaning: 'Progress' means advancement or improvement in a particular area, indicating that there have been positive changes in children's health.

Wrong options:

• determines: Determines is a verb that does not fit as it does not relate to the concept of advancement in health.
• fundamental: Fundamental is an adjective that describes importance, which does not fit as it does not refer to the changes made in health.
• remains: Remains is a verb that indicates continuity, which does not fit as it does not describe the advancements in health.
• removed: Removed is a past participle verb that means taken away, which does not relate to the concept of improvement in health.
• valid: Valid is an adjective that means acceptable, which does not fit as it does not describe the advancements made in health.
• prevented: Prevented is a past participle verb that refers to stopping something from happening, which does not fit as it does not describe the improvements in health.

Correct answer: remains

Explanation: The word 'remains' is a verb that indicates something continues to exist or is still present. It fits grammatically as it describes the ongoing need for work to improve health outcomes for children.

Meaning: 'Remains' means continues to exist or is still necessary, indicating that further efforts are needed in children's health.

Wrong options:

• determines: Determines is a verb that means to decide or conclude something, which does not fit as it does not convey the ongoing need for work.
• fundamental: Fundamental is an adjective that describes importance, which does not fit as it does not indicate continuity or necessity.
• removed: Removed is a past participle verb that means taken away, which does not fit as it does not convey the ongoing need for improvement.
• valid: Valid is an adjective that means acceptable, which does not fit as it does not indicate the necessity for further work.
• progress: Progress is a noun that refers to advancement, which does not fit as it does not indicate the need for ongoing efforts.
• prevented: Prevented is a past participle verb that refers to stopping something from happening, which does not fit as it does not convey the need for continued work.

Correct answer: prevented

Explanation: The term 'prevented' is a past participle verb that indicates stopping something from occurring. It fits grammatically as it describes the child deaths that could be avoided with proper care.

Meaning: 'Prevented' means to stop something from happening, indicating that many child deaths could be avoided with appropriate measures.

Wrong options:

• determines: Determines is a verb that means to decide or conclude something, which does not fit as it does not relate to stopping deaths.
• fundamental: Fundamental is an adjective that describes importance, which does not fit as it does not convey the action of stopping deaths.
• removed: Removed is a past participle verb that means taken away, which does not fit as it does not indicate prevention of deaths.
• valid: Valid is an adjective that means acceptable, which does not fit as it does not relate to the prevention of child deaths.
• progress: Progress is a noun that refers to advancement, which does not fit as it does not indicate the action of preventing deaths.
• remains: Remains is a verb that indicates continuity, which does not fit as it does not convey the action of preventing deaths.