A.I. Explanation:

Correct answer: intelligence

Explanation: The word 'intelligence' fits grammatically as a noun that serves as the subject of the sentence, aligning with the context of discussing the growth of cognitive abilities in humans. It is relevant to the overall theme of intellectual development.

Meaning: Intelligence refers to the ability to acquire and apply knowledge and skills.

Wrong options:

• experiences: 'Experiences' is a plural noun that refers to events or occurrences, which does not fit as the subject of the sentence.
• activity: 'Activity' is a noun that denotes a state of being active, but it does not specifically relate to cognitive growth in the same way as 'intelligence.'
• entry: 'Entry' is a noun that refers to the act of entering or a way in, which does not relate to the concept of cognitive development.
• reasoning: 'Reasoning' is a noun that refers to the action of thinking about something in a logical way, but it is not the overarching concept being discussed here.
• power: 'Power' is a noun that refers to the ability or capacity to do something, which does not specifically address the growth of cognitive abilities.

Correct answer: reasoning

Explanation: The term 'reasoning' is a noun that fits grammatically as it describes the cognitive process involved in intellectual activity. It aligns with the context of discussing the development of mental capabilities alongside intelligence.

Meaning: Reasoning refers to the action of thinking about something in a logical way, often leading to conclusions.

Wrong options:

• experiences: 'Experiences' does not fit here as it refers to events rather than a cognitive process.
• activity: 'Activity' is too broad and does not specifically denote the cognitive process of logical thinking.
• intelligence: 'Intelligence' is already used in the previous blank and does not fit as a description of cognitive powers in this context.
• power: 'Power' is a general term that does not specifically refer to cognitive processes like reasoning.

Correct answer: experiences

Explanation: The word 'experiences' fits grammatically as a plural noun that serves as the object of the preposition 'of.' It is contextually relevant as it refers to the accumulated events that contribute to intellectual development.

Meaning: Experiences refer to the events or occurrences that one undergoes, which contribute to learning and development.

Wrong options:

• intelligence: 'Intelligence' does not fit as it is a singular noun and does not refer to events or occurrences.
• activity: 'Activity' is too vague and does not specifically denote the events that contribute to cognitive development.
• reasoning: 'Reasoning' refers to a cognitive process rather than the events that lead to that process.
• power: 'Power' does not relate to the accumulation of events and is too abstract in this context.

Correct answer: infancy

Explanation: The term 'infancy' fits grammatically as a noun that describes the early stage of development. It is contextually appropriate as it refers to the initial phase of both human and individual growth.

Meaning: Infancy refers to the earliest stage of life, particularly in human development.

Wrong options:

• experiences: 'Experiences' does not fit as it refers to events rather than a developmental stage.
• activity: 'Activity' is too broad and does not specifically denote a stage of development.
• intelligence: 'Intelligence' does not fit as it refers to cognitive ability rather than a developmental phase.
• reasoning: 'Reasoning' is a cognitive process and does not describe a stage of development.