Nancy recently received a credit card with a nominal interest rate of 21 percent. With the card, she purchased some new clothes for $300. The minimum payment on the card is only $15 per month. If Nancy makes the minimum monthly payment and makes no other charges, how long will it be before she pays off the card? Oa. 11.3 months O b. The card will never be paid off. Oc. 34.8 months d. 24.8 months Oe. 16.1 months