Answer:
C. Consuls.
Step-by-step explanation:
Power in the Roman Republic was distributed among various levels, among which the post of a consul is the highest elected post. This post is held by individuals that are elected by the citizens for a one-year term.
Consuls are similar to that of head-of-states. They had power over the military, represented the state in foreign affairs, and also presided over important sessions or events. Every year, two individuals are elected to be the consul, but with the coming of emperors, the power of the consuls declined as the emperor held most of the high-authority powers.
Thus, the correct answer is option C.