Question

lincoln steffens was considered a reformer specifically because he
was a journalist.
wrote about modern issues.
was wealthy and born in the united states.
worked to expose problems in business and in politics.

Explanation:

Lincoln Steffens was a muckraker (a type of reformer - journalist) who worked to expose corruption and problems in business and politics, which aligns with the definition of a reformer (working to improve society by addressing issues). Being a journalist (first option) or writing about modern issues (second) doesn't inherently make one a reformer; wealth and birthplace (third) are irrelevant to being a reformer. So the correct reason is his work to expose business and political problems.

Answer:

D. worked to expose problems in business and in politics.