Answer:
The answer is D. They get 80 percent of PAC contributions.
Step-by-step explanation:
Political Action Committees are campaign collectors. They pool funds from their members and donate these funds to campaign for or against a particular candidate.
PACs usually give an overwhelming proportion of their campaign funds (about 80percent of their contributions) to incumbents. This, they believe is good investment because of the positive re-election rates these incumbents have.