The correct answer to the question "Which union leader led the Pullman Strike?" is:
- B. Eugene Debs
Eugene Debs was a prominent union leader who played a significant role in leading the Pullman Strike of 1894. The Pullman Strike was a nationwide railroad strike that began when the American Railway Union, led by Eugene Debs, supported the workers of the Pullman Company who were facing wage cuts and harsh working conditions. Eugene Debs' involvement in the strike and his advocacy for workers' rights made him a key figure in the labor movement during that time.
While other union leaders like Samuel Gompers, William Haywood, and Terrence V. Powderly were influential in the labor movement as well, it was Eugene Debs who led the American Railway Union and spearheaded the Pullman Strike.