Dorman Co. sold merchandise to Smith Co. on account, $18,000, terms 2/15, net 45. The cost of the merchandise sold is $15,500. Dorman Co. issued a credit memo for $1,750 for merchandise returned that originally cost $1,400. The Smith Co. paid the invoice within the discount period. What is amount of net sales from the above transactions?
a) $16,250
b) $14,100
c) $15,925
d) $13,818