Which of the following contributed to ending reconstruction?
the south focused on other political and economic issues.
the freedman's bureau gained power.
the african american population gained equality.
the north focused on other political and economic issues.

use wikipedia, i think they have this.

populist movement, in u.s. history, politically oriented coalition of agrarian reformers in the middle west and south that advocated a wide range of economic and political legislation in the late 19th century. thus in 1892 their leaders organized the populist, or people's, party, and the farmers' alliances melted away.