In the history of the Sonoran desert,  

Câu hỏi: In the history of the Sonoran desert,  

A. Native American always moved around in the area.  

B. only the Spaniards created fix ed settlements in the area. 

C. the Hohokam people were only present after the 15th century.  

D. a Native American group used a special system for watering the  plants.