Which statement correctly describes the result of the Second Seminole War?

A-The Seminoles killed more than ten thousand US troops.
B-Most of the Seminoles refused to relocate to Indian Territory.
C-A treaty was signed that was favorable to the Seminoles.
D-This conflict was the least costly of the Seminole Wars.

How was rockefeller able to build his monopoly across the oil industry? he found newer and cheaper ways to refine oil, increasing his profits. he confined his business to ohio so he could buy all the refineries there. he bought up oil refineries, cut costs, and reinvested his profits in other refineries. he began to sell kerosene as well as oil, expanding his market.