Suppose Buff Canyon Corp. had account payables of $200 on 12/31/2018 and $150 on 12/31/2019, accounts receivable of $100 on 12/31/2018 and $50 on 12/31/2019, and inventory of $300 on 12/31/2018 and $150 on 12/31/2019. The change in NWC _____ the cash available to the firm in 2019. The cash effect of NWC on the 2019 operating cash flows is ____.

	A.	increases; $150
	B.	decreases; $150
	C.	increases; -$150
	D.	decreases; -$150