One item is omitted in each of the following summaries of balance sheet and income statement data for three different corporations, A, B, and C. Determine the amounts of the missing items, identifying each corporation by letter. Corporation A B C Beginning of the Year: Assets $410,000 $150,000 $199,000 Liabilities 250,000 115,000 166,000 End of the Year: Assets 460,000 195,000 205,000 Liabilities 280,000 95,000 169,000 During the Year: Additional Investment by stockholders ? 79,000 78,000 Dividends 70,000 83,000 ? Revenue 195,000 ? 187,000 Expenses 155,000 113,000 183,000