The correct answer is A. Credit Union
Step-by-step explanation:
A Credit Union is a type of financial institution that is created to provide financial services, mainly credits to those that are part of the Union. Additionally, different from other financial institutions including most banks, the membership in Credit Unions is regulated by its members and it is common there are strict requirements, for example, you might need to belong to a specific school, company, organization or community or otherwise you cannot be part of the Union and therefore have access to financial services. Thus, the type of financial institution that has membership requirements is a Credit Union.