JB Adams Inc. had the following purchase transactions in May

Date of Purchase	Number of Units	Cost per Unit	Total Cost
May 5	500	$4	$2,000
May 10	700	$6	$4,200
May 15	400	$4.50	1,800

Adams sells 1,200units on May 11 and uses the Weighted Average method of inventory costing. What is Adams' Ending Inventory?

Group of answer choices

0

8,000

800

1,800