It is very spontaneous and planning shouldn’t be played
The option that most effectively completes the sentence is “allowing world nations freedom of choice, within reason, promotes peace”. According to John Kennedy in his speech delivered at the American University, nations (in this case he refers to the Soviet Union) should not try to impose rules on other nations as this interferes with the process of peace and creates tension.
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By the year 1960, the Civil Rights Movement had obtained a great audience. Thanks to Martin Luther King Jr and his admirable efforts to advocate non violence, African American activists around the globe were able to gain a widespread support.
Answer:
D. Elion and her colleagues were responsible for developing important drugs.