Final answer:
The board shall charge a penalty fee of $10 for renewal of any license delinquent after 2 months of expiration.
Step-by-step explanation:
The subject of this question is Business and it is appropriate for High School level students.
To answer the question, we need to determine the penalty fee for the renewal of a delinquent license after 2 months of expiration.
Based on the information provided, the credit card company charges $10 for a late payment and an additional $5 for each day the payment remains unpaid. Since the board is charging a penalty fee, it is likely for an individual or organization to renew a license, not make a credit card payment. Therefore, the correct answer is $10 (option a).