How did joint-stock companies lead to the development of one-crop economies in the colonies? a) many colonies sought to create one-crop economies because cultivating multiple cash crops was expensive. b) many european monarchs established one-crop economies to reduce competition and increase profits. c) many joint-stock companies established one-crop economies based on agricultural practices and local farming techniques. d) many joint-stock companies established a monopoly on one cash crop in order to become profitable. is it