From what I think is because laws weren't placed to protect people/workers, since owners pays close attention to money instead of the health of their workers.
Answer:
The Sand Creek massacre (also known as the Chivington massacre, the battle of Sand Creek or the massacre of Cheyenne Indians) was a massacre of Cheyenne and Arapaho people by the U.S. Army in the American Indian Wars that occurred on November 29, 1864, when a 675-man force of the Third Colorado Cavalry under the .
unrestricted is the answer to the blank word
Yes, and I think it's B,too
Hope it helps.
