The Hamada Company sales for 2018 totaled $150,000 and purchases totaled $95,000. Selected January 1, 2018, balances were: accounts receivable, $18,000; inventory, $14,000; and accounts payable, $12,000. December 31, 2018, balances were: accounts receivable, $16,000; inventory, $15,000; and accounts payable, $13,000.

Net cash flows from these activities were:(A) $55,000.
(B) $74,000.
(C) $45,000.
(D) $58,000.