Use the adjusted trial balance for Stockton Company to answer the question that follow. Stockton Company Adjusted Trial Balance December 31 Cash 7,530 Accounts Receivable 2,100 Prepaid Expenses 700 Equipment 13,700 Accumulated Depreciation 1,100 Accounts Payable 1,900 Notes Payable 4,300 < Common Stock 1,000 Retained Earnings 12,940 Dividends 790 Fees Earned 9,250 Wages Expense 2,500 Rent Expense Utilities Expense Depreciation Expense Miscellaneous Expense 1,960 775 250 185 30,490 30,490 Determine the retained earnings ending balance. a. $6,480 O b. $21,400 Oc. $12,150 O d. $15,730