What is the central contrast of the peom​

In literature, an author uses contrast when they describe the difference(s) between two or more entities. For example, in the first four lines of William Shakespeare's Sonnet 130, Shakespeare contrasts a mistress to the sun, coral, snow, and wire. Contrast is the antonym of simile.

the correct answer is b:

romeo and company are going to sneak in through the back.  

romeo was depressed because he wanted to try to forget about rosaline and be happy again. so mercutio told him to just go and have fun. and they sneak through the back because capuleto and montague families were enemies.