The correct answer is A) farming the land owned by the nobles.
During the Zhou Dynasty, one of the peasants class duties was the farming of the land owned by the nobles.
The King was the highest class in the Zhou Dynasty. The Nobles came after him. They were the Lords that were rich, paid taxes to the Empire, owned lands that were worked by the peasants, and had some kind of influence in the government. The peasants were a low class. They were poor people that worked the fields owned by the nobles. They also had to pay taxes and had a difficult life. So yes, during the Zhou Dynasty, one of the peasants class duties was the farming of the land owned by the nobles.
