Use the following alphabetical list of balances for RBT Co. on June 30. 20X6, to answer the question below: Accounts Payable $1,586 Accounts Receivable 1.548 Accumulated Depreciation 290 Cash 4.901 Common Stock 5.200 Depreciation Expense 199 Dividends 700 Equipment 8.875 Insurance Expense 728 Note Payable. Long-term 2.500 Prepaid Insurance 192 Retained Earnings (beginning) 2.156 Salary Expense 4.716 Salary Payable 890 Service Revenue 8.767 Unearned Revenue 470 The amount of ending retained earnings is: $5,280 $4,580 $3,124 $2,424