Abbey Co. sold merchandise to Gomez Co. on account, $35,000, terms 2/15, net 45. The cost of the merchandise sold was $24,500. Abbey Co. issued a credit memo for $3,600 for merchandise returned that originally cost $1,700. Gomez Co. paid the invoice within the discount period. What is the amount of gross profit earned by Abbey Co. on the above transactions?
A- $10,500
B- $30,772
C- $7,972
D- $ 31,400