European colonists in the caribbean built large plantations.
a. sugarcane
c. rice
b. cotton
d. wheat

Option A.

Explanation:

Sugarcane, is the right answer.

An economy based on agricultural mass cultivation, generally of a few commodity yields raised on extensive farms are known as the plantations economy. Export of cash crop is the primary source of income in this type of economy and also the backbone of the economy. Accordingly, the European settlers in the Caribbean developed large Sugarcane plantations.

the answer is b. hope this !

d) in the state of iowa