"Human sacrifice and expansion of the empire" would be the best option from the list, although it should be noted that some of the expansion had begun before his reign officially began.
I believe the answer is because the government allowed businesses to operate without interference.
[The Native Americans lost most of their remaining lands in New England] was the result of King Philip’s War.
King Philip’s war took a toll on the Native Americans as their families were killed and their communities were destroyed throughout New England. Some of the families were also sold into slavery.
This is true.
Lincoln's 10% Plan would have given parole to Southerners if 10% of the population of the State swore a loyalty oath.
This plan was opposed by the Radical Republicans in Congress who felt like the traitorous Confederates weren't being punished enough.