A stock has an average return of 13.6% and a standard deviation of 8.4%. In any one given year, you have a 95% chance that you will not lose more than _____% nor earn more than ____% if you invest in this security.
a. 5.2% to 22.0%.
b. 3.2% to 30.4%.
c. 3.2% to 30.4%.
d. 5.2% to 22.0%.
e. 13.6% to 38.8%.