Read this excerpt from act iii, scene i of romeo and juliet.

benvolio: here comes the furious tybalt back again.

romeo: alive! in triumph! and mercutio slain!
away to heaven, respective lenity,
and fire-ey’d fury be my conduct now! 90
now, tybalt, take the villain back again
that late thou gav’st me; for mercutio’s soul
is but a little way above our heads,
staying for thine to keep him company:
either thou, or i, or both, must go with him. 95

tybalt: thou wretched boy, that didst consort him here,
shalt with him hence.

romeo: this shall determine that. [they fight: tybalt falls.]

how does this complication contribute to the central conflict of the play?

when romeo kills tybalt, he increases the friction with juliet’s family.
when romeo kills tybalt, he impresses friends with his bravery.
when romeo avenges mercutio’s death, the prince is grateful.
when romeo avenges mercutio’s death, romeo is injured.