Answer: fire-eaters
Explanation: The fire-eaters had been hard-line defenders of slavery, who, in June 1850, convened a Southern rights conference in Nashville, Tennessee, "to plot and undertake a few-mode of resistance to Northern aggression."
The correct answer is D. The Spanish-American War resulted from an attempt to enfoce the principles expressed by the Monroe Doctrine.
The Monroe Doctrine, synthesized in the phrase "America for the Americans", was elaborated by John Quincy Adams and attributed to President James Monroe in 1823. It established that any European intervention in America would be seen as an act of aggression that would require intervention of the United States. The doctrine was presented by President Monroe during his sixth State of the Union Address. It was taken with doubts, at first, and then with enthusiasm. It was a decisive moment in the foreign policy of the United States. The doctrine was conceived by its authors, especially John Quincy Adams, as a proclamation by the United States of its opposition to colonialism in response to the threat posed by the monarchical restoration in Europe and the Holy Alliance after the Napoleonic wars.
<span>In 1950, with Senator McCarthy and other arousing fears of Communist spies, Congress passed the Internal Security Act, usually called the McCarran act.
</span>The Internal Security Act<span> of 1950, 64 Stat. 987 (Public Law 81-831), also known as the Subversive Activities Control </span>Act<span> of 1950 or the</span>McCarran Act<span>, after its principal sponsor Sen. Pat </span>McCarran<span> (D-Nevada), is a United States federal law.
</span>Hope this helps!:)