How Were Planters Able to Increase Production by Growing Both

Multiple Choice

How were planters able to increase production by growing both rice and indigo?

A) Rice grew in lowlands and indigo in highlands, at different seasons.
B) Rice and indigo could be grown side by side as companion crops.
C) Rice and indigo could follow each other in the same fields, eliminating the necessity of fallowing.
D) Whenever the market for one was low, the other would be high.