During the year, Optical X Inc. inventory purchases were as follow:

Quarter	Unit Purchased	Cost per Unit	Total
1	250	$ 5.00	$ 1,250
2	320	7	2,240
3	190	9	1,710
4	300	11	3,300
	1060		$ 8,500

Beginning inventory was 400 units at $4 per unit = $1,600.

Sales for the year were 900 units.

What is the COGS for the year under LIFO?

	$5,500
	$4,600
	$2,400
	$7,700
	$1,600