Stock A has a volatility of 55% and a correlation of 23% with your current portfolio. Stock B has a volatility of 69% and a correlation of 25% with your current portfolio. You currently hold both stocks. Which of the following choices below will increase the volatility of your portfolio: (i) selling a small amount of stock B and investing the proceeds in stock A, or (i) selling a small amount of stock A and investing the proceeds in stock B? The marginal contribution to risk for stock Ais %. (Round to one decimal place.) The marginal contribution to risk for stock B is %. (Round to one decimal place.) Which of the choices below will increase the volatility of your portfolio? (Select the best choice below.) O A. Selling a small amount of stock B and investing the proceeds in stock A. O B. Selling a small amount of stock A and investing the proceeds in stock B