Compare Romeo and Mercutio in these lines from Act I, scene iv of Romeo and Juliet. Romeo: Give me a torch: I am not for this ambling;
Being but heavy, I will bear the light.

Mercutio: Nay, gentle Romeo, we must have you dance.

Romeo: Not I, believe me: you have dancing shoes
With nimble soles; I have a soul of lead.

Which statement about this dialogue is true?

A. Romeo is being weighed down by his heavy costume.
B. Mercutio and Romeo are enemies.
C. Romeo is practical and optimistic.
D. Mercutio provides a character foil for Romeo.