11. Which statement about immigration to the United States during the 19th century is most valid?
A. Organized labor supported unlimited immigration.
B. Most immigrants to the United States were illegal aliens.
C. Industrial growth led to a demand for cheap immigrant labor.
D. Few immigrants came from western Europe.
2

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.

Which factor was a major cause of the great depression of the 1930?

Why did president johnson decide not to run for reelection in 1968?