Kendall Is the New Owner of a Catering Company

Kendall is the new owner of a catering company.She receives the invoice for a new walk-in refrigerator,which mentions "2/10,n/30." Which of the following statements accurately explains this?

A) She can get a 10 percent discount if she pays within two days of receiving the bill;otherwise,it is due at the end of the month.
B) She can get a 20 percent discount if she pays within ten days of receiving the bill;otherwise,it is due at the end of the month.
C) She can get a 2 percent discount if she pays within ten days of the invoice date;otherwise,the full amount is due in 30 days.
D) She can get a 30 percent discount if she pays within two days of receiving the bill,or she can get a 10 percent discount if she pays by the end of the month.
E) She can get a 10 percent discount if she pays within two days of receiving the bill;she will have to pay a 10 percent penalty if it is not paid within 30 days.