Which of the Following Statements Is True of Mesopotamian Civilization

Which of the following statements is true of Mesopotamian civilization?

A) There were four classes of people.
B) Slaves were often skilled laborers with responsible positions.
C) Noble landlords owned tracts of land that only allowed for farming one crop.
D) The freemen made up the smallest class of people.
E) All three classes of people had distinct political right s.