An investor currently holds the following portfolio: 8,000 shares of Stock A, worth $16,000; Beta = 1.2 15,000 shares of Stock B, worth $49,000; Beta = 1.7 25,000 shares of Stock C, worth $96,000; Beta = 2.2 The investor is worried that the beta of his portfolio is too high, so he wants to sell some stock C and add stock D, which has a beta of 1, to his portfolio. If the investor wants his portfolio to have a beta of 1.72, he must replace $ Blank 1. Calculate the answer by read surrounding text. 000 stock C with stock D. Note: Enter the first two digits of your answers. The thousands are already in the answer.