I think it’s B too, They were very mean to the natives and stole their land by being violent
Answer:
habitat deterioration
Explanation:
caused by fragmentation, degradation or loss.
In other words, their habitat is being destroyed.
Http://www.lcps.org/cms/lib4/va01000195/centricity/domain/4153/study%20guide%20-%20geography%20unit%201%20answer%20key.pdf
Miscegenation. Hope this helps:)