I think it's the western and eastern fronts.
The answer is most likely The Wounded Knee massacre (B). For people like me who enjoy history, I know this is not correct. Matter of fact, it never ended. They continued their activities away from the public view and Wovoka continued to spread its message, along with Kicking Bear, Short Bull and other spiritual leaders.
I hope this helps! :)
<span>The first Battle of the Marne.</span>
Your answer should be C.) The government set up by the Articles of Confederation was not effective. That's why they had to replace the Articles of Confederation with the Constitution.