Answer:
B) Indus Valley
Explanation:
The Indus Valley civilization, just like the city-states of early Egypt, and Mesopotamia, is one of the oldest civilizations of the world. Along with Ancient China, the Indus Valley civilization is considered to be one of the four cradles of civilization.
All these four ancient civilizations had one thing in common and that is that they developed alongside rivers, reason why they are often called river civilizations.
