Answer: b) People of the Southwest developed systems of canals to divert water from nearby rivers to irrigate their crops.
Step-by-step explanation:
The Native Americans in the Southwest especially the Hohokam, relied on agriculture to support a relatively large population for the time period they existed in.
With the climate of the American Southwest where they lived being a desert climate that did not get a lot of rainfall, they had to find creative ways to enable them engage in farming and this they did by constructing systems of canals that diverted water from nearby rivers to irrigate their crops.