Even Though Their Goal Is to Provide a Collective Good,public

Even though their goal is to provide a collective good,public interest groups often struggle because they ______.

A) are often vulnerable to the free rider problem and to disputes over whether some collective goods (like abortion or gun rights) are beneficial
B) are liberal, and many conservatives oppose them strongly
C) do not try to influence government, so their efforts never address real political issues
D) are notorious for raising funds but not for using them to achieve collective goods
E) look for economic benefits and are disappointed with the collective goods produced