The answer is "D. They made strict laws."
You can find all your answers about this here https://www.thoughtco.com/world-war-i-the-fourteen-points-2361398
Answer: Japan needed resources it did not have and it's neighbors would not trade with them. They decided to take them by force.
Explanation:
Japan needed resources it did not have and it's neighbors would not trade with them. They decided to take them by force.
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Be specific more information
I know for a fact that it was build to guard against the mongols, i'm not so sure about these two tho. It's the longest human made structure at more than four thousand miles, I want to say that two is also applicable
So the answers are 1,2,4