For the stocks A and B you observe the following variables based on monthly returns: A B E[r] 9.11% 4.92% Volatility () 12.61% 3.15% Correlation () 0.5289 0.5289 You wish to invest 46.15% in stock A and 53.85% in stock B. Compute the expected portfolio return and portfolio volatility. (rounded to two decimal places) Select one: a. 6.85%; 9.43% b. 7.18%; 51.63% c. 6.85%; 0.89% d. 7.18%; 9.43% e. 6.85%; 6.86%

Explain please!