Mary recently received a credit card with a nominal interest rate of 18 percent. With the card, she purchased some new clothes for $450. The minimum payment on the card is only $10 per month. If Mary makes the minimum monthly payment and makes no other charges, how long will it be before she pays off the card? O a. 75.5 months b. 60.4 months C. 42.3 months d. The card will never be paid off. e. 120.8 months