D. all answers are correct.
Answer:
He was willing to trade the Sudetenland to maintain the peace.
Explanation:
Chamberlain wanted to appease for Germany, as he believed Britain had a big enough of a loss from WWI that he was willing to do anything, including trading Sudetenland, to maintain peace.
The Emancipation Manifesto freed the serfs of the Russian Empire.
A and D
I mean... Eventually some kings left the Papal authority. However, remember the crusades? It united nearly everyone in Europe. Some to the point of making new states.
I hope I'm right!
Adolf Hitler after singing the Munich agreement.
(APEX)