An investor currently holds the following portfolio:

8,000 shares of Stock A, worth $14,000; Beta = 1.5

15,000 shares of Stock B, worth $49,000; Beta = 1.9

25,000 shares of Stock C, worth $95,000; Beta = 2.4

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 1.1, to his portfolio. If the investor wants his portfolio to have a beta of 1.71, he must replace $______ stock C with stock D.