Suppose 6 months ago a Swiss investor bought a 6-month U.S. Treasury bill at a price of $9,708.74, with a maturity value of $10,000. The exchange rate at that time was 1.441 Swiss francs per dollar. Today, at maturity, the exchange rate is 1.324 Swiss francs per dollar. What is the annualized rate of return to the Swiss investor? Do not round the intermediate calculations and round the final answer to two decimal places a.-11.26% b 10.83% C 9.769 d.-9.98% e. -10.73%