Why Is It Challenging for Interest Groups to Use People

Why is it challenging for interest groups to use people as a resource?

A) Political parties often take away volunteers from interest groups.
B) Motivating members to participate can be difficult.
C) Many people in interest groups simply do not follow politics.
D) Most people in interest groups are untrusting of government.
E) Elected officials usually ignore people who seem to be engaging in politics because they have been prompted to do so by an interest group.