IBM, a company in America, has sold computer chips to a Swiss company and given the Swiss customer the option to repay in three months by paying either $ 10000 or SF15000. Today, the current exchange rate is $ 0.60 / SF (A) Given this free choice to the customer, what exchange rate implies? (B) If the current exchange rate turns out to be $ 0.62 / SF, which currency do you think the customer will choose to use to pay for the camera? What is the monetary benefit of this option for the customer?