Answer:
The correct answer is:
B. The highest officers in the Roman Republic only served for a year.
Explanation:
In the Roman empire the highest authority was composed by the magistrates of Rome who were also called the councils. According to the Roman constitution, it was necessary to elect the two consuls every year in order to rule the empire in terms of social and military operations. For the Roman empire, it was important to have two different consuls due to the fact that in that way there was no absolute power in a single individual.