What Do the Developments in Farm Policy and Federally Sponsored

What do the developments in farm policy and federally sponsored medical research tell us about interest groups?

A) Only groups who have a broad agenda have influence within the political system.
B) More complex issues and a fragmented policy process force groups to specialize to be effective.
C) Interest groups are more successful when lobbying on narrowly focused matters of domestic policy.
D) The only way groups can continue to convince supporters that they are effective is by developing a wide-ranging agenda that allows them to influence more policy areas.