Question

How does Tybalt’s relationship with Romeo affect his reaction to Romeo being at the party?

He thinks Romeo is there to insult his family because of the ongoing feud.
He thinks Romeo is there to wear a silly mask and dance because he is an entertainer.
He thinks Romeo is there to work as a servant, because they are not equals.
He thinks Romeo is there to challenge him to a fight because they hate each other.

Answer 1

He thinks Romeo is there to challenge him to a fight because they hate each other.

Tybalt recognizes Romeo as a Montague and, given the family feud, sees his presence as an affront and immediately wants to draw and confront him (Act 1, Scene 5).