This is a question you should answer on your own since the answer of this question should be from your perspective.
Ans he has cold hands
Explanation: cold hands means A description of someone who does not outwardly show feelings but, inwardly, is very kind and loving. This phrase is used to describe another person—perhaps a stern boss who is caring on the inside. This may be said about any person who is secretly emotional or caring. mercutio is known to be quick tempered and usually does not think twice before acting so i think its the first one
Characterization is when the author introduces his character(s). So I guess when you’re asked that question it means you have to find the character’s behavior, personality, appearance, thought process... etc
The answer will be C
I hope I helped you