Grosselear Goods, Inc., a merchandiser, plans to sell 48,000 units during the month. If the company has 10,000 units on hand at the start of the month, and plans to have 8,000 units on hand at the end of the month, how many units must be purchased from suppliers during the month? A) 46,000 B) 48,000 C) 50,000 D) 56,000