"Drowning" was the least dangerous threat to pioneers on the Oregon Trail, while "<span>both A and C" is correct for "</span><span>What did emigrants do in the town of Independence, Missouri?"</span>
A) The act forcibly relocated eastern American Indians to Indian Territory west of the Mississippi River
I can't really explain it, that's just what the treaty stated.
African Americans in the Civil War faced many problems. They were usually treated differently and had restricted roles. This doesn't mean that they didn't fight just as bravely as the other solders. Many of them died nobly for their cause.