A) because the definition of popular sovereignty is a doctrine in which the government is created by and subject to the will of the people.
Scottish-born Andrew Carnegie<span> (1835-1919) was an American industrialist who amassed a fortune in the </span>steel industry<span> then became a major philanthropist.</span><span>
He gained control because he had the power to take over smaller railroad companies.</span>
The answer is 3, state control :)