A general partnership had the following information at the end of each of the years 20X0, 20X1, and 20X2: 20X0 20X1 20X2 Current liabilities $20,000 $20,000 $ 18,000 Long-term liabilities $50,000 $50,000 $60,000 Net income (or loss) N/A ($40,000) $ 15,000 All liabilities are recourse debt and partner M guaranteed all the long-term liabilities. M, a 10% owner, had a $3,000 basis in the partnership at the end of 20X0. M made no contributions or withdrawals during 20X1 or 20X2. How much is M's basis at the end of 20X2? A. $10,300 B. $10,500 C. $60,300 D. $60,500