smart people always think of clever answers.
Answer: This is all a matter of habit. A habit is something you have created that needs to be stopped. Sometimes you have to know what caused the habit. If you do not know what caused the habit, then that could be the reason why it is still happening.
Explanation:
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.
