Politics during the period of Rome is governed by an emperor having their city as a state. It includes the relationship between the landowners having vast lands cultivated by peasants and slaves with the protection of nobles in return for having partial lands for payment. Its economic system is both feudal and slavery.
The middle ages have the role of a monarchy government and the power of a clergy in the decision making. It has a larger scope of land compared to the Romans. It has a feudal economic system and at the stage of a diminishing slavery system.
The answer to the question above is letter "A. save American lives". Truman became the president succeeding President Franklin Roosevelt in April 12, 1945. Aside from what has been said, it was also his aim to shorten war for peace.
