You didnt give any answer choices.
Definition Context Clue is the correct answer. Gregarious means "lives in groups" and it says "They are very friendly and sociable"
The answer is D, Music. He was a musician who played the keyboard and sang wonderfully. Sadly he died in 1974.
To incite is to to stir, encourage, or urge on; stimulate or prompt to action, so technically, the only thing that may cause that would be responsibility (option B). Although, without any proper context, I can't say it too confidently. Abandonment would make her feel helpless and confused, an interrogation seems like action has already been taken, and another protagonist would cause.....mixed feelings honestly.