$13.6\mathrm{.}4$ Which of the following accounts are used when recording the sales entry of a sale on credit?

A$.$ merchandise inventory, cash

B$.$ accounts receivable, merchandise inventory

C$.$ accounts receivable, sales

D$.$ sales, cost of goods sold

$14.6\mathrm{.}4$ A customer pays on credit for $$1,250$ worth of merchandise, terms $4/15,$ n$/30.$ If the customer pays

within the discount window, how much will they remit in cash to the retailer?

A$.$ $$1,250$

B$.$ $$1,200$

C$.$ $$50$

D$.$ $$500$