Well, Germany is not usually thought to have started it, rather a Serbian rebel, Austrian ultimatum to Serbia to catch this rebel, Serbia's refusal to let Austria enter their country and Russian support of Serbia.
After all this, Austria asked Germany to support them, and Germany did, knowing that this means fighting against the powerful Russia.
So Germany's agreement to the ongoing war turned it into a bigger conflict.
Answer:
D. 16th Amendment.
Explanation:
The 16th Amendment was added to the Constitution in 1913 and give freedom to the Congress to charge taxes over any source, without a census consult. However, these taxes should be fair and coherent.
It responded to needs for relief, reform, and recovery from the Great Depression
