What was the basis of the power of the Roman emperor? A the Senate B the military C the personal wealth of his family D his control of the Roman economy

A and B

Explanation:

"The emperors of ancient Rome were the central authority in the empire while the provinces were run by their governors who were directly answerable to the Senate. The power of the emperor lay in their control of the Roman army, meaning emperors often needed the support of the troops or the Roman Senate, or both."

c) troops march forward in close formation against newer, more accurate weapons