Correct Answer: Acrophobia

Solution : The third option is the correct choice.

Explanation: T he most appropriate one-word term for the fear of heights is Acrophobia because it precisely denotes the specific phobia related to high places. Acro comes from the Greek word for height or high altitude, and phobia indicates an intense fear or aversion.

The meanings of the other options are as follows:

• Agoraphobia refers to the fear of open or public spaces.
• Claustrophobia refers to the fear of confined spaces.
• Homophobia refers to the fear or prejudice against homosexuality.

Therefore, the correct answer is acrophobia.