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.