Which specific problem led Rome to change from a monarchy to a republic?

A. The king did not hold enough power.

B. The king was unable to win wars.

C. The king mistreated the citizens.

D. The Senate mistreated the citizens.

C. The king mistreated the citizens.

Explanation:

The Roman monarchy was overthrown around 509 BCE, during a political revolution that resulted in the expulsion of Lucius Tarquinius Superbus, the last king of Rome.

Despite waging a series of successful campaigns against Rome's neighbors, securing Rome's position as head of the Latin cities, and engaging in a series of public works, Tarquin was a very unpopular king due to his violence and abuse of power.

For this reason, we can conclude that the right answer is the letter C.

A specific problem that led Rome to change from a monarchy to a republic was the king mistreated the citizens.