D (canals for carrying water to their desert farms)
Explanation:
The Hohokam are probably most famous for their creation of extensive irrigation canals along the Salt and Gila rivers. In fact, the Hohokam had the largest and most complex irrigation systems of any culture in the New World north of Peru.
The best mood to describe the world when the cold war has ended is optimistic. Optimistic for a new future without war, to live free, make decisions and see the world.
