Please help with A-C if possible

Standard deviation versus coefficient of variation as measures of risk Greengago, Inc, a sucoessful nursory, is considering several expansion projects. All the altematives promise to produce an accoplable retuin. Data on four possible projects appear in the following table: a. Which project is least risky, ludging on the basis of range? b. Which projoct has the lowest standard deviation? Exptain why standard deviation may not be an entirely appropriate measure of risk for purposes of this comparison. c. Caiculate the coefficiont of variation for each projoct. Which project do you think Greengage's owners should choose? a. Which project is least risky, ludging on the basis of rango? (Select the best answer below.) A. Project D B. Project C C. Projoct A D. Projoct B Data table (Click on the icon here in order to copy the contents of the data table below into a spreadsheet.)