Which of the Following Is the Most Accurate Summary of the Conflict

Which of the following is the most accurate summary of the conflict over Czechoslovakia's Sudetenland?

A) The Sudetenland contained key industries and defenses but was ethnically German. Czech mistreatment of the German population led to its annexation by Germany.
B) The pro-Nazi German population agitated against the democratic Czechoslovak government. To avoid a war and against the wishes of the Czechs and Slovaks, France and Britain gave this integral part of Czechoslovakia to Germany.
C) The Sudetenland contained key industries and defenses but was ethnically German. The Czechs were willing, however, to cede the territory provided France and Britain would guarantee the territorial integrity of the rest of Czechoslovakia.
D) Claiming the German right to national self-determination, Hitler took over the Sudetenland peacefully as he had Austria. The new realities on the ground were made official at the Munich Conference.
E) Having powerful allies, strong fortifications, a well-equipped army, and a solid industrial base, the Czechs defended the Sudetenland even after France and Britain has given it to Germany.