When Europe completed the rebuilding phase after World War I, what effect did it have on the farmers in the United States? A. The price of crops went up because the farmers grew plenty for everyone. B. The price of crops stayed the same because there was no changes in the need for food. C. The price of crops went down because the farmers did not slow down production to avoid the surplus. D. The price of crops went up because the dollar became stronger in the European markets.​