Who exposed the plight of the urban poor in 1889's "how the other half lives"?

The one responsible of exposing the plight of the urban poor in 1889’s. “How the other half lives” is Jacob Riis. He is a reformer and a reporter that is responsible of creating the book, “How The Other Half Lives” in which had shock its readers because of the factual information that they have provided.

peasants’ war, (1524–25) peasant uprising in germany inspired by changes brought by the reformation, peasants in western and southern germany invoked   divine law to demand agrarian rights and freedom from oppression by nobles and landlords. as the uprising spread, some peasant groups organized armies. although the revolt was supported huldrych zwingli and thomas müntzerits condemnation by martain luther contributed to its defeat, principally by the army of the swabian league. some 100,000 peasants were killed. reprisals and increased restrictions discouraged further attempts to improve the peasants’ plight.

i think it would be " a" i might be wrong tho

i believe the answer is d.