Which of the following was a consequence of westward expansion that affected Indigenous people in the mid-1800s?

As settlers moved west in wagon trains, their large numbers disturbed the environment and drove away wild game that Indigenous people depended on for food. This made it harder for Indigenous communities to hunt and sustain themselves. Desert sand, muddy trails, and slow travel describe difficulties faced by travelers, not the main consequence for Indigenous people asked about here.

AI-written and checked against the verified answer.