What best describes muckraker lincoln steffens’s goal?
to expose and reform unsanitary working conditionsto expose and reform child labor lawsto expose and reform corruption in politicsto expose and reform business monopolies

Lincoln Steffen's goal was to expose and reform corruption in politics.

Explanation:

Steffens was the son of wealthy business people and studied in California, France and Germany with degrees from the University of California. Since 1892, he worked for the New York Evening Post. He later became the publisher of McClure's Magazine, from where he co-developed an investigative style called muckraking, helping to uncover corruption in the American society, with a special emphasis in New York.

After 1910, Steffens' reporting on corruption gradually diminished. Instead, his focus was on the Mexican Revolution. He became a vehement advocate of the so-called rebels and focused more and more on the revolution as the only way to escape capitalism.

#2 the answer is d

#3 the answer is a

#4 the answer is b

use wikipedia, i think they have this.