What is the biggest obstacle that Romeo and Juliet must overcome?

A) Juliet is too young to marry.

B) He is a Montague, she a Capulet.

C) Romeo is too shy to approach Juliet.

D) Juliet does not understand the rules of courtship; she is "too fond."

B.

Because they come from rival families, their families do not approve of their relationship.

B) He is a Montague, she a Capulet.

Explanation:

Romeo and Juliet are the children of two families who have been at odds for many years; they have always hated each other. Romeo belongs to the Montagues and Juliet belongs to the Capulets. In fact, this hatred between the two families is one of the main threads of the play. This situation is what conditions the love story, which ends in tragedy. Therefore, Romeo and Juliet, during the play, do their best to overcome their families' feud but they can not succeed; they both die tragically.