Northwest Fur Co. started 2013 with $110,000 of merchandise inventory on hand. During 2013, $590,000 in merchandise was purchased on account with credit terms of 1/15, n/45. All discounts were taken. Purchases were all made f.o.b. shipping point. Northwest paid freight charges of $8,100. Merchandise with an invoice amount of $4,000 was returned for credit. Cost of goods sold for the year was $368,000. Northwest uses a perpetual inventory system. Assuming Northwest uses the gross method to record purchases, what is the cost of goods available for sale?

a)	$704,100.
b)	$697,800.
c)	$698,240.
d)	$698,200.