For the four unrelated situations, A-D, calculate the unknown amounts indicated by the letters appearing in each column: A B D Beginning Assets $28,000 (d) $33,000 23,600 $12,000 5,000 Liabilities 19,000 9,000 Ending Assets 35,000 22,300 26,000 (b) 34,000 15,000 40,000 19,000 Liabilities During the Year Common Stock (C) Sales Revenue 7,000 (a) 10,000 13,500 4,500 28,000 1,500 21,000 3,500 24,000 6,500 17,000 18,000 1,000 11,000 Dividends Expenses (a) X (b) O X (c) O * (d) 0 x