Answer:
C. 20 to 25 days
Explanation:
The grace period is a period of time you have to pay your credit card balance before interest are charged. The Credit Card Act states that if the financial intitutions decide to grant a grace period, they should be at least of 21 days and usually they are from 21 to 25 days. So, according to this and the options given, the typical grace period for a credit card is 20 to 25 days.
