Question

American citizens may belong to __ interest groups at one time.

Answer 1

The correct answer is C.) any number of

Interest groups are those groups that try to change the laws of a country or anything similar that will help them gain something in return. A citizen can belong to as many interest groups as they want since being in an interest group is often not something official. They can thus be in as many as they want because they can support any cause they want.