The development of the mccormick reaper lead to what becoming a profitable crop?

a. wheat

c. oats and barley

b. corn

d. rice

Wheat. it is used to reap crops at harvest. It is a machine tool invented by McCormick. He founded the McCormick Harvesting Machine Company. The machine he invented was horse drawn one. It speeded the process of reaping the crops like wheat. It replaced the maual process of cutting grains.