Why did the north have to use immigrant labor in the factories? 4 Why did the north have to use immigrant labor in the factories?

A. Cheap western lands had attracted northerners.
B. Disease caused many workers to die.
C. Those in the north refused to work in the factories.
D. War had killed much of the population.

Which statement best describes standard oil in the late 1800s? standard oil controlled only a small number of the nation’s oil refineries. standard oil was a single business that operated in a small region. standard oil controlled only the means and methods of oil production. standard oil owned ninety percent of all oil refineries in the united states.