Read the dialogue from Act I, scene v of Romeo and Juliet. Capulet: Why, how now, kinsman! wherefore storm you so? Tybalt: Uncle, this is a Montague, our foe; A villain that is hither come in spite, To scorn at our solemnity this night. Capulet: Young Romeo, is it? Tybalt: ’Tis he, that villain Romeo. Capulet: Content thee, gentle coz, let him alone: He bears him like a portly gentleman Which best describes the relationship between Tybalt and Capulet? Tybalt is Capulet’s son. His solemn character provides a foil to the emotional nature of Lord Capulet. Tybalt is Capulet’s nephew. His short-tempered personality provides a foil to the calmer Lord Capulet. Tybalt is Capulet’s son-in-law. His love for Juliet provides a foil to Lord Capulet’s cold personality. Tybalt is Capulet’s enemy. His hatred of the Capulet family is a foil to Lord Capulet’s family loyalty.

Tybalt is Capulet’s nephew. His short-tempered personality provides a foil to the calmer Lord Capulet.

Explanation:

William Shakespeare's play "Romeo and Juliet" revolves around the romance between Romeo and Juliet, despite their feuding families. Dealing with the themes of loyalty, family, and love, the play focuses on how these two lovebirds met their fateful death that led to the end of their family feud.

In the given lines from Act I scene v of the play, the scene is at the party hosted by the Capulets. Romeo and his friends had sneaked into the party and were enjoying when Tybalt, the nephew of Capulet saw them and tried to throw them out. But his uncle told him not to, for "Young Romeo" seems "like a portly gentleman". While Tybalt has a short-temper, his uncle's personality is calmer, providing, or acting as a foil to one another's personality.

you need to post the passage so we know what you’re talking about

the answer should be d) he was one of those young thousands who greeted the war with a certain amount of relief, welcoming the liberation from webs of tangled emotion" since it is the best option because it shows his desire to free himself. 

hope this answer you! have a great day.