The historical growth of evaluation research by social scientists is linked to which of the following?

Central to the free-rider problem is the fact that:

a. it is relatively easy to organize groups of like-minded people for action. b. interest groups are most likely to develop in systems that provide people multiple points of access to influence policy. c. interest groups often focus on a particular area of policy at the exclusion of others. d. people want the benefits of an interest group's effort without having to join it.

States are often called laboratories for democracy

Indicate whether the statement is true or false