What Was One of the Main Reasons That Industrialized Countries

What was one of the main reasons that industrialized countries sought colonies during the late 1800s?

A) They wanted to depress the supply of goods so that they could raise prices at home.
B) They felt the need to keep military forces in place farther away from the home countries.
C) They were looking for new places to build the needed new factories, where labor would be cheaper.
D) They needed new markets for all the products their factories were turning out in the midst of a depression.
E) They were naturally competitive with each other, especially with the new economic doctrine of mercantilism.