A firm uses backflush costing to assign product costs to inventory. The firm values inventory using throughput accounting.

At the beginning of January, the RIP account has a balance of $0. On January 10, the firm purchases 1,000 lbs of raw materials worth $10,000. At the end of the month, 10 lbs of raw materials (worth $100) remain unused. 50 units were in process ($6 material cost per unit)

If you searched for the RIP account in the firm's cost accounting records on January 15, what balance would that account show?

	a.	$10,000
	b.	$0
	c.	$400
	d.	$100