What did lincoln steffens, jacob riis, ida tarbell, and john spargo have in common?

The correct answer is they were all mucrakers.

A muckraker is an investigative journalist or reporter who tries to expose corruption or societal issues in America. In this case, all of the people mentioned in the questions are considered muckrakers. For example, Jacob Riis wrote the book How the Other Half Lives. This book was about the poor living conditions in tenements in New York city. These tenements housed thousands of immigrants who lacked basic necessities in their homes.

yup! you are correct it is b.

the reform movements that arose during the antebellum period in america focused on specific issues: temperance, abolishing imprisonment for debt, pacifism, antislavery, abolishing capital punishment, amelioration of prison conditions (with prison's purpose reconceived as rehabilitation rather than punishment), the humane treatment of animals, the humane and just treatment of native americans, the establishment of public institutions for the care of the destitute, orphans, blind, and mentally ill, the establishment of public schools, the abolition of tobacco use, vegetarianism, health reform, homeopathic medicine, woman's rights (including, at first, especially the establishment of a woman's right to own property apart from her husband and her right to sue for divorce), and the amelioration of labor conditions (including higher pay, the right to form unions, the right to strike, and the demand for limits on the number of work hours, and safe working conditions).

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