Read the excerpt below from Act II, Scene 4 and answer the question.

MERCUTIO Alas poor Romeo! he is already dead; stabbed with a white wench's black eye; shot through the ear with a love-song; the very pin of his heart cleft with the blind bow-boy's butt-shaft: and is he a man to encounter Tybalt?

How are these lines an example of dramatic irony?

Mercutio is unaware Romeo now loves Juliet.
Mercutio says Romeo is already “dead” because of love.
“Mercutio thinks Romeo is not man enough to fight Tybalt.
Mercutio believes Romeo would lose in a fight against Tybalt.