Alan Barnett Is 43 Years Old and Has Accumulated $78,000

Alan Barnett is 43 years old and has accumulated $78,000 in his self-directed defined contribution pension plan. Each year he contributes $1,500 to the plan and his employer contributes an equal amount. Alan thinks he will retire at age 60 and figures he will live to age
83. The plan allows for two types of investments. One offers a 4% risk-free real rate of return. The other offers an expected return of 10% and has a standard deviation of 34%. Alan now has 40% of his money in the risk-free investment and 60% in the risky investment. He plans to continue saving at the same rate and keep the same proportions invested in each of the investments. His salary will grow at the same rate as inflation.
-How much can Alan be sure of having in the safe account at retirement?

A) $59,473
B) $62,557
C) $78,943
D) $89,211
E) $104,632