Answer:
Europeans coming in like they own the place....
Europeans took their land, infected them with diseases, enslaved them, and took their jewelry ad burned down their homes.
Answer:
I think it may be option d
The Bolshevik Party was able to seize the reins of control after successfully overthrowing the provisional government.
The act caused Northern abolitionist to fight against the South, the ones who wanted slavery :) hope this was enough.