Which One of the Following Statements Regarding Sales Discounts Is

Which one of the following statements regarding sales discounts is true?

A) If a company offers a discount to encourage prompt payment and the discount is taken,the discount reduces the amount of Net Sales.
B) Credit terms of "2/10,n/30" mean that if payment is made in two days,a 10% discount may be taken;if not paid within two days,the full invoice price will be due in thirty days.
C) The terms "sales discounts" and "sales credits" are used interchangeably by a company.
D) Sales discounts is an expense account.