The answer is D. The colonists wanted to trade with more states than just England, so they smuggled their goods.
Answer:
World War 1 resulted in a somewhat extended period of time in which an economic boom occurred. After the war, the U.S. became a lender to other territories, including Latin America. Exports to Europe from the U.S. increased as countries prepared for war. The U.S. spending increased as it prepared to enter the war itself.
Some of the pull factor codes were things like the Homestead acts which were a series of acts on land allocation. For example, if you went westwards, the country would give you a huge piece of land which would become fully yours after five years of successful agricultural business.