Mothers against drunk driving (madd), the american civil liberties union (aclu), the aarp, and the national rifle association are all examples of which interest group type?

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.

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.

he believed that congress would be better not dealing with "lobbyists", or people who seek to influence (a politician or public official) on an issue, since historically, they had problems with these kinds of people. he thought lobbying produces benefits, but should be carefully monitored.