Final answer:
Juliet's line "O Romeo, Romeo! Wherefore art thou Romeo?" in Shakespeare's play contains dramatic irony, where the audience is aware of Romeo's presence but she is not. The correct answer is option c.
Step-by-step explanation:
The line "O Romeo, Romeo! Wherefore art thou Romeo?" from William Shakespeare's Romeo and Juliet features a commonly misunderstood example of dramatic irony. The irony lies in Juliet's lament over Romeo's name, the very thing that separates them due to the feud between their families, out of her ignorance of being heard by him and the audience's knowledge of Romeo's presence and their mutual love. The term 'wherefore' means 'why', indicating Juliet is questioning why Romeo must be a Montague, the enemy of her family, rather than 'where' is he.