SuperTech and HyperDrive's returns over the past four years are: Year SuperTech Returns HyperDrive Returns 2016-20 2017 50 2018 30 2019 10 .05 .09 -.12 20 The variance (52) for SuperTech is .0892 The variance (s2) for HyperDrive is .0176. Which of the following is TRUE? a. SuperTech's average return is 8.92%. b. SuperTech's standard deviation is 1327. c. HyperDrive's average return is higher than SuperTech's average return. d. HyperDrive's standard deviation ic 1927