The correct option is A Protection
During the years of the Roman Empire, the poor people were protected by the soldiers of the emperor. When the empire fell, there were no laws protecting them, so they turned to the lords to keep the peace and to act on their behalf. This willingness to be ruled by the lords led to the beginnings of feudalism. Some peasants were free, but most became serfs to the lord. This meant that they were required to stay with the land and pay very high rent to the lord. Hence, Option A is correct.