QD =160 – P. Quantities are measured in thousands and price in U.S. dollars. After the opening of free trade with the United States, if the world price of the bicycles settles at $60, the Rest of the World will:A．export 40,000 bicycles．B．export 60,000 bicycles．C．import 60,000 bicycles．D．import 40,000 bicycles．