1. The annual rates of returns on ASX Inc. over the 35 year period are normally distributed. The average rate of return is 10% and variance of the returns is 81 % percent squared. Find the range of returns for a given year with probability of 68%

A. 71% and 91%

B. (71)% and 91%

C. 10% to 20%

D. 6% to 10%

E. None of the above