Answer:
World War 1
Explanation:
Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I.
Climatic condition was the major factor for migrating to new places.
I believe that would be the working class.<span />
C. Gustave courbet ..............................................................
I believe the answer is D a place where Muslim philosophers met to contemplate life. I hope this helps!