Which of the Following Would Not Be Considered an Advantage

Which of the following would not be considered an advantage of interest group activity?

A) Interest groups provide all groups in society with an opportunity to win support for their ideas and positions.
B) Joining groups and working for the interests of the group is a natural inclination of citizens and is a method of representation in our democracy.
C) Interest groups work to concentrate benefits for the few while distributing costs to the many.
D) The right of association is a basic right protected implicitly by the First Amendment's right "peaceably to assemble."
E) The system is fair in that it gives all groups an equitable opportunity to compete.