A company purchases 500 shares of its $50 par value stock at $60 per share. It then reissues 250 shares at $62 per share. The entry upon reissue of the stock would include a credit to: a. retained earnings for $15,500. b. treasury stock for $15,500. c. gain on sale of treasury stock for $500. d. additional paid-in capital (from treasury stock) for $500