The inventory transactions of VTS Corporation are shown below.

Date	Transaction	Number of Units			Unit Cost/Price
Jan. 1	Beginning inventory		500		$	10
Feb. 25	Sale		300			20
May 21	Purchase		400			12
Jul. 15	Purchase		500			15
Dec. 10	Sale		800			20

All purchase/sale transactions are made on credit. The company uses the FIFO method and perpetual inventory system to record transactions. What is the amount of LIFO adjustment needed to adjust FIFO inventory records reported for the year to LIFO for external reporting purposes?

a) 1,300

b) 4,500

c) 3,000

d) 1,000