The Americans simply wanted the land for themselves, they pushed the natives further out towards California, used them as slaves before Africans. Give me a time frame so I can answer the problem better
The answer to your question would most likely be C. Mainly because, the US Congress act to regulate business practices is when Congress passed laws that ensured workplace safety.
It was because of the shortcoming of the leader that assumed the position of Mansa Musa, Mali's most effective pioneer who kicked the bucket in 1337.
