Question 10 (1 point) You want to diversify your portfolio by adding an additional stock. You are considering five stocks that have the same expected return of 10% and the same standard deviation of 15% but different correlation coefficients with your existing portfolio. You should select the stock with which correlation coefficient in the following to come up with the least risky portfolio at the end? (No calculation is needed) 1) 0.51 2) 0.62 3) 0.77 4) 0.91 5) 0.88