please help with this multiple choice question in the next 15 min

Coronado Company's inventory records show the following data:

		Units	Unit Cost
Inventory:	January 1	9600	$8.80
Purchases:	June 18	8800	9.00
	November 8	5700	8.00

A physical inventory on December 31 shows 4200 units on hand. Coronado sells the units for $12 each. The company has an effective tax rate of 24%. Coronado uses the periodic inventory method. If the company uses FIFO, what is the gross profit for the period?

$64620

$68820

$66480

$63120