Marley has a portfolio of three stocks, Stock X, Stock Y, and Stock Z. Stock X has a beta of 1.2 and a standard deviation of 25%. Stock Y has a beta of 1.5 and a standard deviation of 40%. Stock Z has a beta of -0.7 and a standard deviation of 50%. If Marley wanted to minimize her exposure to systematic risk, which stock would she sell, and which stock would she buy more of to achieve the most effective reduction in systematic risk? O Marley should sell Stock Z and buy more of Stock X O Marley should sell Stock X and buy more of Stock Y O Marley should sell Stock Y and buy more of Stock Z Harriet purchased a 10-year corporate bond in 2018. At the time, the bond sold for $1,122. The current yield to maturity (YTM) on the bond is 6.7%. If the bond currently sells at $1,304, what do you know about the coupon rate of the bond? Coupon rate is less than 6.7% Coupon rate is greater than 6.7% Coupon rate has increased Coupon rate has decreased