The Following Payoff Matrix Shows the Profit Outcomes for Three

The following payoff matrix shows the profit outcomes for three projects,A,B,and C,for each of two possible product prices.There is a 60% probability the price will be $10 and a 40% probability the price will be $20. Using the mean variance rule a decision maker would choose

A) A.
B) B.
C) C.
D) can't use this rule under these circumstances