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You're best answer would be B. It prohibited Japan from having an army. Hope this helped.
This part of the Constitution was of huge importance because B. It prohibited Japan from having an army.
Purpose of Article 9 in Japanese Constitution
- To ensure that Japan would not go to war again as they did in WWII.
- To ensure that Japan would not have an army capable of war.
MacArthur had been put in charge of Japan to ensure that Japan would become a peaceful nation that would no longer threaten the people of Asia and the World. Article 9 was his way of ensuring this.
In conclusion, option B is correct.
Find out more on Article 9 at https://brainly.com/question/12932029.