The principle that government can only do what its people give it the authority to do is called A. separation of powers.
B. popular sovereignty.
C. limited government.
D. checks and balances.

B. Popular Sovereignty

Explanation:

Popular sovereignty is the principle that the authority of a state and its government are created and sustained by the consent of its people, through their elected representatives, who are the source of all political power

montesquieu took the view that the roman republic had powers separated so that no one could usurp complete power. in the british constitutional system, montesquieu discerned a separation of powers among the monarch, parliament, and the courts of law.

i honesty don't know, good luck tho dawg