You should try Caravel first. If this answer is incorrect, let me know, and I will try again.
Answer:I don’t speak Spanish sry
Explanation:
"To accommodate for lack of dependable rainfall" would be the best option as to why the ancient Chinese organized large groups of people to build and maintain irrigation systems, since when rainfall would not come for long periods of time, the crops would likely die without proper irrigation.
You got it right. Why do u have to write so much on these