Please Solve As soon as Solve quickly I get you thumbs up directly Thank's

LG 2 P8-7 Coefficient of variation Metal Manufacturing has isolated four alternatives for meeting its need for increased production capacity. The following table summarizes data gathered relative to each of these alternatives. Alternative A Expected retum 20% 22 19 16 Standard deviation of return 7.0% 9.5 6.0 S.5 B D a. Calculate the coefficient of variation for each alternative. b. If the firm wishes to minimize risk, which alternative do you recommend? Why