Choose the correct answer? Look at the map of some of the first Sumerian cities. Then answer the questions below, according to the map which of these statements is true about the first Sumerian cities.A. They were all east of the Persian Gulf. B. They were mostly in northern.Mesopotamia. C. They were far away from the Tigris and Euphrates Rivers. D. They were mostly in southern Mesopotamia

D. They were mostly in southern Mesopotamia

D. They were mostly in southern Mesopotamia