Why Are Campaign Contributions So Important for Interest Groups Seeking

Why are campaign contributions so important for interest groups seeking to influence government?

A) Legislators only grant meetings with interest groups that offer campaign contributions.
B) Members of Congress are better listeners when hearing from interests that financially supported their campaign.
C) Groups can offer contributions in return for favorable votes on pending legislation.
D) Organizations seeking to offer input on a political party's platform are required to make campaign contributions.-Consider This: There is no such requirement.Groups that do contribute to parties are not guaranteed access to the party platform.