Choose the answer.
Which best identifies a subplot in Julius Caesar and explains its significance?
A. Portia struggles to understand her husband secrecy; it indicates that Brutus's behavior is out of the ordinary.
B. Brutus and Cassius struggle with Antony and Octavius for control of Rome; it builds suspense about who will assume power next.
C. Brutus struggles with the decision to join the conspirators or not; it builds suspense about whether or not the assassination will occur
D. Brutus struggles with Calpurnia over whether they should inform Caesar of the assassination plot; it builds suspense about who can and cannot be trusted.