The correct answer is D) the government to pay attention to a concern that they share.
Most interest groups are formed because members want the government to pay attention to a concern that they share.
Interest groups are the kind of groups, organizations or associations that have personal agendas and they hire lobbyists to negotiate with Congressmen in order to pass legislation that favors their interests. For instance, an interest group could be the US Chamber of Commerce or the AFCL that congregates many labor unions of America.