Which best describes interest groups in the early to mid 1800s?

Interest groups are the group of people who attempt to influence public policy, it is also known as a pressure group, special interests groups, and lobbyests.
The purpose of interest groups is to shape public policy, bring awareness, represents shared attitudes instead of geography and provide information of the government. In the Mid 1800's interest group describe as anti-slavery, fraternals, and religions, in the late 1800s it describes business associations