A.I. Explanation:

Correct answer: tracking

Explanation: The word 'tracking' is a gerund that functions as a noun in this context, indicating the action of monitoring information. It fits grammatically as it describes how the wristwatch operates, aligning with the context of gathering data about health metrics.

Meaning: 'Tracking' refers to the act of monitoring or observing something over time.

Wrong options:

• administer: The verb 'administer' means to manage or supervise, which does not fit the context of how the watch functions.
• detects: 'Detects' is a verb that implies finding or discovering something, but it does not describe the ongoing action of the watch's operation.
• hoisted: 'Hoisted' is a past participle of 'hoist,' meaning to lift or raise, which is irrelevant to the function of the watch.
• healthy: 'Healthy' is an adjective describing a state of well-being, which does not fit as a verb or noun in this context.
• located: 'Located' is a past participle that describes the position of something, which does not fit as an action related to the watch's function.
• alerts: 'Alerts' is a verb that indicates notifying someone, but it does not describe the action of the watch itself.

Correct answer: detects

Explanation: The word 'detects' is a verb that indicates the action of identifying or discovering a change in health. It fits grammatically as it describes what the watch does when it senses a health change, maintaining the logical flow of the sentence.

Meaning: 'Detects' means to discover or identify the presence of something, in this case, a change in health.

Wrong options:

• administer: 'Administer' does not fit as it implies managing rather than identifying changes in health.
• tracking: 'Tracking' is a gerund that describes monitoring, which does not fit the context of identifying a specific change.
• hoisted: 'Hoisted' is irrelevant as it refers to lifting something, which does not relate to the action of detecting.
• healthy: 'Healthy' is an adjective and does not function as a verb, making it unsuitable in this context.
• located: 'Located' describes a position and does not convey the action of identifying changes in health.
• alerts: 'Alerts' is a verb that means to notify, which does not fit the context of detecting changes.

Correct answer: located

Explanation: The word 'located' is a past participle that describes the position of the touchscreen hub. It fits grammatically as it provides information about where the hub is situated, maintaining clarity in the sentence structure.

Meaning: 'Located' means to be situated or positioned in a specific place.

Wrong options:

• administer: 'Administer' does not fit as it refers to managing rather than describing a position.
• detects: 'Detects' is a verb that does not describe the position of the hub, making it unsuitable here.
• hoisted: 'Hoisted' is irrelevant as it refers to lifting, which does not relate to the location of the hub.
• healthy: 'Healthy' is an adjective that does not describe a position and is not appropriate in this context.
• tracking: 'Tracking' refers to monitoring and does not convey the idea of location.
• alerts: 'Alerts' is a verb that indicates notifying someone, which does not fit the context of describing a position.

Correct answer: alerts

Explanation: The word 'alerts' is a verb that indicates the action of notifying or warning someone. It fits grammatically as it describes what the hub does in response to detecting a health change, contributing to the logical flow of the sentence.

Meaning: 'Alerts' means to notify someone about something important or urgent, in this case, health issues.

Wrong options:

• administer: 'Administer' does not fit as it implies managing rather than notifying contacts.
• detects: 'Detects' is a verb that describes identifying changes, which does not fit the action of notifying.
• hoisted: 'Hoisted' is irrelevant as it refers to lifting something, which does not relate to alerting contacts.
• healthy: 'Healthy' is an adjective and does not function as a verb, making it unsuitable in this context.
• located: 'Located' describes a position and does not convey the action of alerting.
• tracking: 'Tracking' refers to monitoring and does not fit the context of notifying contacts.