The passage suggests that which of the following is most likely to be true of United States trade laws
选项：

A:They will eliminate the practice of "dumping" products in the United States.
B:They will enable manufacturers in the United States to compete more profitably outside the United Stats.
C:They will affect United States trade with Canada more negatively than trade with other nations.
D:Those that help one unit within a parent company will not necessarily help other units in the company.