Abbey Co$.$ sold merchandise to Gomez Co$.$ on account, $$29,400,$ terms $2/15,$ n$/45.$ The cost of the goods sold was $$14,910.$ Abbey Co$.$ issued a credit memo for $$3,500$ for merchandise returned that originally cost $$1,266.$ What is the amount of gross profit earned by Abbey Co$.$ on these transactions?

a$.$ $$15,168$

b$.$ $$12,256$

c$.$ $$13,644$

d$.$ $$3,500$