Credit cards and charge cards differ in two important ways. One is the method of payment. What is the other difference? ОА.
You have to pay interest on credit cards but not on charge cards.
OB
You have to pay interest on charge cards but not on credit cards.
You earn interest when you use a charge card but not a credit card.
ОС.
OD
You earn interest when you use a credit card but not a charge card.