Starg Corporation, a retailer, plans to sell 25,000 units of Product X during the month of August. If the company has 9,000 units on hand at the start of the month, and plans to have 7,000 units on hand at the end of the month, how many units of Product X must be purchased from the supplier during the month?

	A.	25,000
	B.	27,000
	C.	32,000
	D.	23,000