A stock has returns of 18 percent, 15 percent, -21 percent, and 6 percent for the past four years. Based on this information, what is the 99 percent probability range of returns for any one given year? Select one: a. -13.56 to 20.56 percent b.-24.60 to 31.80 percent c. -31.00 to 40.00 percent d. -48.75 to 57.75 percent e. -71.73 to 71.73 percent