Stock A and B have the following historical return Year Stock A's Return Stock B's Return 2013 12% -20% 2014 -6% 3% 2015 7% 50% 2016 22% -12% Stock As average rate of return is _______. Stock Bs average rate of return is _______. Stock As standard deviation of returns is _______. Stock Bs standard deviation of returns is _______. a. 8.75%; 5.25%; 11.64%; 33.12% b. 11.67%; 7.00%; 1.36%; 10.97% c. 8.75%; 5.25%; 10.08%; 28.68% d. 11.67%; 7.00%; 1.02%; 8.32%