Most progressives paid little attention to:
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a. conditions for african americans in the south.
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b. the unfair practices of trusts.
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c. the struggle of child laborers.
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d. corruption in city governments.

More progressiveness paid little attention to conditions of the African Americans in the South.

Explanation:

Members of the black community faced problems like being unable to attend school or buy houses at some neighbourhoods. There are amendments in the constitution granting freedom from such problems, but it still continued to prevail.

Members of the African American community were denied right to vote, despite amendments in the constitution. This problem was common the south but after the end of the civil war people migrated to the north, resulting in more discrimination in the north as well.

your answer would be just capitalism.

an interest group is an organization whose members share common concerns, and try to influence government policies that impact those concerns. elected officials frequently complain about the influence of "special interests" on american politics.