a r Suppose that you invest $67,000 in a stock that does not pay any dividends. The stock's monthly returns in the following five months are given by Month Return 1 2 -7.5% 3 4.6% 4 -12.5% 5 9.1% The value of your investment in the stock at the end of Month 5 is $64,669.17. What is the stock return r in Month 1? A.-15.60% B. 9.80% C. 14.25% O D. 4.50%