Answer:
MADD, ACLU, AARP and National Rifle association are Public interest groups.
Explanation:
Interest groups are the organisations and people having similar interests and concerns while Public Interest groups work on different issues that affects general public instead of a small group of members. The major challenge that a public interest groups face in a pluralist society is to define a single idea for the public good in pluralistic society. They work by lobbying, advocating and public campaigning.
