X uses the LIFO method in computing its inventory. It had 1,000 units on hand at the end of 2019. Based on the following information, what is the value of its ending inventory on December 31, 2019?

Beginning inventory: 500 units with a perunit cost of $2.00 and a per-unit market value of $3.00 Purchases: September 25, 2019, 1,500 units with a per-unit cost of $3.00 and a per-unit market value of $3.00. November 12, 2019, 1,000 units with a per-unit cost of $4.00 and a per-unit value of $4.00.

a. $2,500

b. $3,000

c. $4,000

d. $5,000