Answer:b. prevented Japan from having or using an army.
<span>United States decide to enter World War I </span>because of the Germans' decision to resume the policy of unrestricted submarine warfare,
The best answer for this question would be:
C) To acknowledge primary documents are without bias.
<span>History has been recorded ever since the beginning of time, it is important to look into the primary documents in history and to understand each perspective. Understanding history means, not being biased with the basis of your understanding, every era has a reason why those events had happened.</span>
