Which description matches Romeo's mood at the beginning of the play?

A.

melancholy and isolated because Rosaline has rejected him

B.

quiet and thoughtful because of Juliet's beauty

C.

irritated and angry because of the feud

D.

happy and playful because he is going to a party

A. Melancholy and isolated because Rosaline has rejected him.

In such lines as " I have lost myself" and "What, shall I groan and tell thee?" Clearly express how Romeo is feeling dejected.

Benvolio will go on to encourage Romeo to look on other beauties, since he cannot have Rosaline.