Even When There Is a Group of People Who Share

Even when there is a group of people who share policy goals, it is possible that there is no interest group representing them. This usually occurs because:

A) laws prevent interest groups from organizing.
B) forming and maintaining a group presents numerous hurdles and obstacles.
C) preexisting organizations will co-opt the issue to expand their membership base.
D) the group has no financial support from large donors.
E) political parties already represent virtually all of the interests in society.