The correct answer is letter B
The Ethiopian revolution had important consequences for the International System, including being one of the factors that caused the intensification of tensions that led to the end of detente originated the second cold war. The study of this revolution also demystifies the country as a poor and subservient Third World country and puts it as an autonomous actor (as far as possible) and diplomatically relevant beyond of the African continent.
The answer is D. A Supreme court Decision to move the Cherokee west of the Mississippi River. Here is text from Wikipedia,
"Indian removal was a genocide in the 19th century whereby Native Americans were forced by the United States government to leave their ancestral homelands in the eastern United States to lands west of the Mississippi River, specifically to a designated Indian Territory (roughly, modern Oklahoma)."
<span>The relationship between the island's natives and visitors gives insight into the negative side of colonial imperialism.</span>