The answer is c. hope it helps
The following that can be used to separate independant clauses are; colon, semicolon, comma, and hyphen. I did this in my school and they are all correct. I hope this helps you or anyone.
a word (other than a pronoun) used to identify any of a class of people, places, things, or ideas.
Noun Examples
Man, Milk, Cow, America
These Are ALL Things
The answer is D. Tybalt is trying to get Mercutio to fight with him