5. Currency boards is one of the exchange tate systems.... (5 points) a) Where eountries intervene in the foreign exchange makket. b) Where local currenoy is allowed to float within a band. d) Where local curroney is fully backed by a foreign currency. 6. Lead operation refers to (5 points) a) the tendency of countries to ban exports and imports. b) the tendency of importers to prepay for goods that they plan to purchase when is expected. c) the tendenoy of exporters and importers to stop all the payroments. d) the tendency of importers to postpone the payment to exporters abroad