A muckraker was A) a journalist that reported on the abuses, crime, fraud, and injustices in society.
Usually, they were considered to be the worst kind of journalists, seeking sensational stories about bad things that happen in the world.
2) internal rhyme
Internal rhyme refers to a sound device in poetry, where a word in the middle of a line rhymes with a word at the end of a line, or rhymes with a word in the middle of the next line.
In this instance, "peering" occurs in the middle of the line "D<span>eep into that darkness peering, long I stood wondering, fearing"</span>, and it rhymes with the word "fearing" at the end of the line- representing an internal rhyme.
The action of solving a problem, dispute, or contentious matter.
