A buyer of $$8,600$ in merchandise inventory failed to take advantage of the vendor's credit terms of $2/15,$ n$/45,$ and instead paid the invoice in full at the end of $45$ days. By not taking advantage of the cash discount, the buyer lost the discount of:

Question $14$Select one:

a$.$

$$100.$

b$.$

$$172.$

c$.$

$$86.$

d$.$

$$860.$

e$.$

$$1,290.$