Western countries managed to establish a global economy in which the transfer of goods, money, and technology needed to be regulated in an orderly way to ensure a continuous flow of natural resources and cheap labor for the industrialized world. Yet colonialism adversely affected the colonies. Under foreign rule, local economies could not find a chance to grow. Imported goods wiped out local ones. Colonialism also led to a cultural clash. The pressures to Westernize led the colonial people to reevaluate their traditions. But the good thing was Western countries introduced modern medicine that stressed the use of vaccines and more sanitary hygiene, helping to save lives and increase life expectancy. The correct answer is "E".