Correct Answer: A
Explanation:
Meaning: The meaning of gregarious is people or animals that are very social and enjoy being in crowds.
Someone who's outgoing, sociable, and fond of the company of others.
Example: This insect is gregarious and nocturnal
Synonyms: Friendly, Affable, Sociable, Cordial
Antonyms: Unfriendly, Cold, Introverted, Unsociable