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Answer (D) is correct . A decline in the value of the dollar relative to other currencies lowers the price of U.S. goods to foreign consumers.??Thus, exporters of goods produced in the U.S. benefit.??Simultaneously, a low value for the dollar decreases imports by making foreign goods more expensive.

Answer (A) is incorrect because The trade account still has a deficit despite the cheaper dollar. Imports continue to exceed exports because patterns of consumption are slow to change.
Answer (B) is incorrect because The capital account benefits from the cheaper dollar. Foreigners can buy more dollars with fewer yen, marks, etc. Moreover, foreign capital inflow increases because of the federal government’s budget deficits. Hence, the U.S. experiences a net capital inflow.
Answer (C) is incorrect because The fall in the dollar has a positive effect on the nation’s trade deficit. Exports increase and imports decrease.