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

(Click on the icon located on the top-right corner of the data table below in order to copy its contents into a spreadsheet.) a. A? B? C? D? b. Alternative A B D Expected return 20% 25% 19% 16% Standard deviation of return 8.5% 8.6% 6.5% 4.9% Calculate the coefficient of variation for each alternative. If the firm wishes to minimize risk, which alternative do you recommend? Why?