The historical returns for two invectments-A and B - aro summarized in the following table for the period 2016 to 2020 . Fiti-. Use the data to answer the questions than fellowe a. On the basis of a review of the retum data, which investment appears to be more risky? Why? b. Calculate the standard deviation for each irvestments returns. c. On the basis of your calculations in part b, which investrwent is more risky? Compare this conclusion to your obeervarion in part a a. On the basis of a review of the retum data, which investment appears to be more raky? Why? (Choose the best anewer beicw.) A. The riskier investment appears to be invesiment B, with refums that are doser to the average relative to itrestrent A, whose retums are tarther from the averago. B. Investment A and investrient B have equal risk because the trverage retume are the same. C. The riskior kivestment appess to be imvestment A, with returns that vary widely frem the average relative to investment B, whose ratums show lese deviation fiom the areroje. D. The rinkiet investment appears to be investment B, with returs that vary widely from the taverage relative to investment A. whose retums show less devation from the everage. Data table