a. On tho basis of a review of the reburn data, which investment appears to be more nsiky? Why? b. Calculate the standard deviation for each investment's foturnt: c. On the basis of your calculations in part b. Which investment is more raky? Compare this conclusion to your observation in part a. a. On the bosis of a review of the retum data, which investment appears to be more risky? Why? (Choose the best answer below) A. Investment A and investment B have equat risk because the average returns aro the samn. B. The riskier investment appears to be investment A, with resums that vary widely from the average relative to investment B, whose returns show less deviation trom the average. C. The riskier inwestment appeas to be investment B, wht returns that are closar to the averape relative to inveshrect A, whose returns are tarther from the average D. The riskier investment appears to be investment B, with retums that vary widely from ene average relative to investrent A, whose returns show iess deviabion from the iverage. Data table (Click on the Icon Iocated on the top-rignt corner of the data table below in order to copy its contents into a spreadsheet.)