Mews Corporation has the following information reported on the balance sheet as of December 31 of the current​ year: Common​ Stock, $10 par value​ (authorized 20,000​ shares) ​$60,000 Treasury Stock​ (1,000 shares) ​$30,000 Based on the information​ above, how many shares of common stock have been​ issued? A. ​7,000 B. ​1,000 C. ​5,000 D. ​6,000