If I remember it well, c. the fugitive slave act <span>increased sectional tensions in the 1850s. Also I'd admit Kansas-Nebraska Act of 1954.</span>
The Monroe Doctrine became a mainstay of U.S. foreign policy. In 1823 U.S. President James Monroe proclaimed the U.S. protector of the Western Hemisphere by forbidding European powers from colonizing additional territories in the Americas.
<span>A. all of the above
it was difficult to negotiate fair treaties for all those reason and more. Such as the fact that there were many native nations were as different from each other as they were from colonialist. Even "selling" land that was in dispute with another native group to begin with.</span>
Answer: all of the choices are correct
Explanation:
Around the turn of the twentieth century, graduates of psychology at Cornell University in Upstate New York were asked to swallow a rubber tube to perform psychological research.
Through providing data on the experience to research the responsiveness of their internal organs, Professor Edward Bradford Titchener had his students conduct a process of introspection.
At the time, the study became well known around Cornell, bringing a reputation as an unethical location to the psychology laboratory.