How Do Interest Groups Help Improve the Principal-Agent Relationship Between

Multiple Choice

How do interest groups help improve the principal-agent relationship between politicians and voters?

A) They share information about the preferences of constituents, the effects of policies, and the actions of politicians.
B) They sue legislators who have betrayed their commitments to voters.
C) They help politicians stage Astroturf campaigns.
D) They provide selective incentives to politicians who are good principals.