Which reason does Brutus give to justify killing Caesar?
a. Brutus thinks Caesar is a tyrant who will only become more of a tyrant if he gains power.
b. Brutus himself wants to become king of Rome.
c. Brutus thinks that Caesar is trying to kill him, so Brutus must act first.
d. Brutus has no reason for participating in the assassination; he just does everything that Cassius tells him to do.