D. Germany's declaration of unlimited submarine warfare.
The powers not delegated to the U.S. by the constitution nor prohibited by it to the states.
The worlds largest population is mostly in china with a population of over a billlion
I believe the correct answer is <span>C. Bread was a staple food item in French households, and the lack of it probably pushed the already starving citizens over the edge.
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B. Walter Rauschenbusch
Rauschenbusch was a theologian who wrote Christianity and the Social Crisis in 1907, so that is the correct. Upton Sinclair was a muckraker, who wrote "the Jungle". Jane Addams was a suffragette and Ida Tarbell was another muckraker. So, A, C and D are not correct.