Which of the Following Would Best Describe Early Mesopotamia

Which of the following would best describe early Mesopotamia?

A) More people lived in the towns than in the rural areas.
B) Most urban jobs could be obtained with little or no educational background.
C) While many people were directly or indirectly involved in food production, one of the most important tasks was to obtain a fresh supply of water on a daily basis.
D) Slaves were found in al parts of the Sumerian lands.
E) Although livestock was plentiful and vegetables could be easily grown, Mesopotamians had to import their grains.