Which of the following explains the reason for a downward-sloping demand curve for U.S. dollars in the foreign exchange market? (3 points) The exports of the United States become less expensive when the price of the dollar falls, so more exports from the U.S. are demanded. When the price of a dollar falls, people buy more dollars for travel to the United States. As the price of the dollar increases, people wish to import more goods from the United States. I only II only III only I & III I &