Northwest Fur Co. started 2021 with $101,000 of merchandise inventory on hand. During 2021, $450,000 in merchandise was purchased on account with credit terms of 3/15, n/45. All discounts were taken. Purchases were all made f.o.b. shipping point. Northwest paid freight charges of $9,100. Merchandise with an invoice amount of $4,500 was returned for credit. Cost of goods sold for the year was $371,000. Northwest uses a perpetual inventory system. Assuming Northwest uses the gross method to record purchases, what is the cost of goods available for sale?

Multiple Choice

A. $542,235.

B. $555,400.

C. $555,600.

D. $542,100.