a. Calculate the betas for portlolios A and B b. Compare the risks of these portsolios to the market as well as to each other. Which portolio is more rikxy? a. The beta for portfolio A is (Round to four decimai places:) The beta fer portiolio B is (Round to four decimal places) b. Which portfolo is more niky? (Select the best enswer below) A. They are the same B. Portolio A c. Portolio B Data table (Clek on the kon here 8 in order to copy the contents of the data table below into a speceadaheet)