Read the excerpt from Act II of Julius Caesar. Brutus: (To himself) It must be by his death. (He thinks how Caesar might act.) He would be crowned. How that might change his nature, there's the question. Crown him; and then I grant we put a sting in him that he may do danger with. (He shakes his head, worried.) And therefore think him as a serpent's egg, which, hatched, would as his kind grow mis­chievous, and kill him in the shell.

What makes this excerpt from Act II of Julius Caesar an example of a monologue?

Brutus is warning Caesar about the plot.

Brutus is telling Portia about his fears.

Brutus is revealing his thoughts to the audience.

Brutus is asking Lucius to help him.