Read the passage from a book written by journalist Upton Sinclair during the Progressive Era. There would be meat that had tumbled out on the floor, in the dirt and sawdust, where the workers had tramped and spit uncounted billions of consumption germs. . . . the meat would be shoveled into carts, and the man who did the shoveling would not trouble to lift out a rat even when he saw one—there were things that went into the sausage in comparison with which a poisoned rat was a tidbit.

–The Jungle,
Upton Sinclair

Which Progressive Era issue does the passage address?

the rights of women and child workers
corruption among government officials
poor living conditions in tenement buildings
consumer safety and poor business practices