Suppose General Motors stock has an expected return of 19% and a volatity of 41%, and Molson-Cocrs Brewing has an expected return of 14% and a volatility of 29%. If the two stocks are uncorrelated, a. What is the expected return and volatity of a portfolio consisting of 67% General Motors stock and 33% of Molson-Coors Brewing stock? b. Given your answer to (a), is invosting all of your money in Molson-Coors stock an efficient portfolio of these two stocks? c. Is investing all of your money in General Motors an efficient portfolio of these two stocks