Select the correct answer.

The Harappan city of Mohenjo Daro was built along the Indus River. It was a thriving city that traded with other civilizations. Why did the citizens of Mohenjo Daro build their homes in this location?

A. The river produced favorable conditions for agriculture to support large populations.
B. They wanted to protect themselves against the yearly flooding of the Indus River.
C. Being close to the river showed they were a higher class in the civilization.
D. The river provided protection against enemy tribes and animals.
E. The river provided easy travel routes for their nomadic society.