The following items are taken from the financial statements of the Postal Service for the year ending December 31, 2015: Accounts payable $ 18,000 Accounts receivable 11,000 Accumulated depreciation equipment 28,000 Advertising expense 21,000 Cash 15,000 Common stock 42,000 Dividends 14,000 Depreciation expense 12,000 Insurance expense 3,000 Note payable, due 6/30/16 70,000 Prepaid insurance (12-month policy) 6,000 Rent expense 17,000 Retained earnings (1/1/15) 60,000 Salaries and wages expense 32,000 Service revenue 133,000 Supplies 4,000 Supplies expense 6,000 Equipment 210,000 What is the companys net income for the year ending December 31, 2015?

$12,000 $28,000 $42,000 $133,000