<span>The second industrial revolution or the Technical Revolution was an electric revolution. Many problems arose during this era - the gap between the rich and the poor grew, unemployment remained unsolved, and economic growth was unstable, with the world economy experiencing harsh depressions. However, innovations such as the development of railroads resulting to an economical transportation of goods, massive production of iron and steel, and the evolution of electricity as a source of power were brought by the second industrial revolution.</span>
Answer:
d. Focus its foreign policy on containing the spread of Soviet communism
Explanation:
In an influential 1947 article, diplomat George F. Kennan advocated that the US should: "Focus its foreign policy on containing the spread of Soviet communism."
In the article which was titled the "X-Article" and published in a journal named Foreign Affairs George F. Kennan described that "The main element of any United States policy toward the Soviet Union, must be that of a long-term, patient but firm and vigilant containment of Russian expansive tendencies.”
David Wilmot was a Pennsylvania-born congressman who opposed slavery. His "proviso"—a clause tacked on to a number of legislation being debated in Congress—prohibited slavery in all of the new territory won from Mexico following the Mexican War. Although the proviso was well-liked in the North, it was vehemently opposed by the South and never became a part of the legislation. It declared that slavery would be outlawed in any new area that the United States might take over from Mexico. The argument over whether slavery still exists in the West was rekindled.
<span>Isolationism in America was based on two beliefs. The first was the view that the United States should avoid any political commitment that tied American policy and action to the policies and actions of other nations. The second was a pervasive belief that the central aim of American foreign policy was to avoid foreign wars at all costs. </span>
