The merchandise trade deficit indicates a net outflow of U.S. dollars as the result of
A. importing more foreign goods than the U.S. exports to other countries.
B. long-term foreign investment in the U.S. being less than the U.S. invests abroad.
C. exporting more foreign goods than the U.S. imports from other countries.
D. too few charitable contributions made by foreigners to U.S. citizens.