What name was given to the group of investigative journalists who uncovered corruption in business and government in the late 1800s and early 1900s ?

muckrakers
conservatives
socialists
progressives

The correct answer is Muckrakers.

Muckraker is the name give to a group of American journalists of the Progressive Era (1890s–1920s) who tried to expose corruption in big business and in government. One of the most famous muckraking magazines was McClure's, which tried to raise awareness about the social hardships (poverty, unsafe working conditions, etc.) caused by the power of big business in a rapidly industrializing United States.

congress was not thoroughly prohibiting states from funding religious schools.

i think it was   tsar alexander ii