Select the correct answer. What best explains the muckrakers' legislative successes during the Progressive Era?
A. strong government support
B. expanded freedom of the press
C. their ability to inspire public pressure
D. the expansion of voting rights

can you tell me what is it

d

explanation:

i think that this is the best answer, but im sorry if this is wrong

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.

what is the question?