WORLD CIVILIZATION

Detailed explanation-1: -Roman emperors were chosen in one of three ways, depending on the time period and circumstances involved. In the first and increasingly infrequent method, emperors were selected by the Senate, who confirmed the powers of the office in a particular individual, often at the behest of the previous ruler.

Detailed explanation-2: -During the empire, the senate was at the head of the government bureaucracy and was a law court. The emperor held the title of Princeps Senatus, and could appoint new senators, summon and preside over Senate discussions, and propose legislation.