Im not sure but i think it might be C
Answer:
Christian unity ended in western Europe. Who broke from the Roman Catholic Church so he could remarry and became the head of a new Protestant church in his country
Explanation:
Military power and technology.
The failure of the Spring Offensive and the loss of her allies in mid- to late-1918 eventually resulted in a German surrender and the signing of a ceasefire on November 11th 1918 I think.
They would divide Germany in two. The Allies would get most of west Germany and split it between 3 occupation zones, French, British, and American. The Comintern would get most of East Germany and most of the countries East of Berlin would be turned into Soviet satellite states.