Its C. The Monroe Doctrine said that European countries couldnt interfer with North or South American affairs. The Doctrine was enforced by the British because the US had no way of enforcing the Doctrine because it was still weak. Britian agreed to enforce it becuase it allowed them to keep and expand their trade interest in the Americas.
The two most important differences between these two revolutions<span> are that the</span>French Revolution<span> was more radical and, in a sense, more violent. First, the </span>French Revolution<span> was much more violent than the </span>American Revolution. ... After theRevolution<span>, much was the same in the United States as it had been in the colonies.</span>
The development of railroads was one of the most important phenomena of the Industrial Revolution. Trains provided supplies and equipment and a lifeline of the army. Trains made a big impact on the citizens. Railroads were visible symbols of industry and modernity during the Civil War.
The SALT Treaty C. reduced the nuclear weapons arsenals of the U.S. and Soviet Union.