In Act I, Olivia develops romantic feelings for Cesario (Viola).
How does this develop the plot of Twelfth Night?
A. Olivia finds out that Cesario is really Viola and finally consents to marry the Duke.
B. It causes Olivia to want to marry Cesario, but she does not know that it is Viola disguised as a man.
C. It causes Olivia to feel embarrassed and angry when she finds out that Cesario is really Viola.
D. Cesario convinces Olivia that the Duke is wonderful, and Olivia's feelings for the Duke grow stronger.