B because in order for the reader to understand how the storyline is going to you need to start off with a good hook.
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.
