Why is terracing used in southeast asian agriculture?
to make land less fertile for farming
to make land more level for farming
to make land more valuable for selling
to make rain less problematic for villagers

B. Due to lack of land to grow food and a giant growing population, the people of Southeast Asia had to find a way to find more room for food and when man made islands did not work, they choose to start terracing which was a great way to use up the room they had. 

I think it is b to make land more level for farming

That really sucks, but i don't know who your leader is, and i don't want to write that much