The European Central Bank (ECB), the central bank of the Eurozone, has determined that the euro is overvalued (has appreciated too much) relative to various other important currencies around the world. In order to help stabilize the euro in an attempt to keep it from appreciating more, the ECB might Select one: a, sell euros in the foreign exchange market. b. buy euros in the foreign exchange market. c. sell all the noneuro currencies it holds and keep the euros it holds d. sell the currencies it holds that compete most directly with the euro