Stock A has the following probability distribution of expected returns. What is Stock A's expected rate of return and standard deviation? Probability Rate o -15% 0.1 0.2 0.4 0.2 0.1 10 25 a. 5.0%; 9.596 O b. 8.096, 65% C. 5.0%, 6.5% d. 5.096, 3.596 e. 8.0%; 9.5% O