_________ intended to make people aware of the working conditions experienced by immigrant workers, but his work is most known for exposing the unsanitary conditions common in the meatpacking industry

The correct answer is R; Upton Sinclair
Further Explanation:
Upton Sinclair exposed the meatpacking industry in his book, The Jungle. He wrote the book about the immigrants working conditions that included women and children working long and hard hours. The work was dangerous and "back breaking."
In the book, he was descriptive about the rotting meat, blood on the floors, and contamination in the book. After the book was released, changes were made in the industry. The book helped to make new laws for sanitary conditions but not for the immigrants.
He was upset when the public was angry about the meat industry being unsanitary and ignored the issues with the workers making little money and long hours.
Learn more about Upton Sinclair at https://brainly.com/question/12192640
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