Answer:
C. They enslaved foreigners and forced them to build their religious temples.
Step-by-step explanation:
The Indus River Valley civilization grew and developed thaks to the water supply and fertli lands that the Valley had, the indus river made for a great supplier of fresh water, and the lands of the valley were very fertile, this made it possible for the civilization to develop, they typically grew wheat and barley, raised cattle and had a sophisticated underground sewage system. The sentence that its not true about them is that they enslaved foreigners and force them to build their religious temples.