Caesar was assassinated because A . He monopolized military power
B . He had confiscated money from the aristocracy
C . He had personally offended Brutus and Cassius
D. He advocated broad democratic reforms

A.

Explanation:

The Senate feared that Caesar's unprecedented concentration of power during his dictatorship was undermining the Roman Republic, and presented the deed as an act of tyrannicide.

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.