Mr. Fox owns 520 shares of stock in Ocean's Corporation, which represents 52% of Ocean's only class of stock issued and outstanding. Mr. Fox's basis in the stock is $52,000 ($100 per share). Ocean redeems 250 shares of Mr. Fox's stock for $42,000. What is Mr. Fox's basis in his remaining shares of stock?

A. $52,000 B. $42,000 C. $27,000 D. $25,000