The correct answer is B.
The Hohokam lived in a desert with little rain. Rainfall in this region averages only around seven to ten inches per year; most of this comes as light rain in December and January and as ferocious downpours in July and August. This pattern gave the Hohokam opportunity to plant and harvest crops nearly nine months of the year. So they figured out how to irrigate their crops. they utilised extensive and ingenious canal systems to irrigate thousands of acres of their farmland; more than three hundred miles of major canals, and nearly three times that number of smaller canals