Suppose Argentina's currency (Peso) is pegged at a fixed rate against the USD. Suppose that because of a trade surplus with the US, the peso has appreciated against the USD. What would the Argentinian government do to maintain the value of its currency against the USD? Group of answer choices Sell Pesos and buy $ since there is an excess demand for Pesos. Buy Pesos and sell $ since there is an excess demand for Pesos. Sell Pesos and buy $ since there is an excess supply of Pesos. Buy Pesos and sell $ since there is an excess supply of Pesos