Tedder uses a periodic inventory system. At the end of January, 20 units were on hand. The following additional information is available for the month of January:

Jan.	1	Beginning inventory: 10 units at $2 each	$20
	20	Purchased 90 units for $3 each	$270
		Cost of goods available for sale	$290

If the company uses the weighted average method of inventory costing, how much is cost of goods sold for January?

a. $240

b. $250

c. $230

d. $232