in 2002, the united states placed higher tariffs on imports of steel. according to the open-economy macroeconomic model this policy reduced imports a. of steel into the united states, but reduced u.s. exports of other goods by an equal amount. b. of steel into the united states and increased u.s. exports of other goods by an equal amount. c. into the united states and made the net supply of dollars in the foreign exchange market shift right. d. into the united states and made u.s. net exports rise.