The German People Believed That the Treaty of Versailles Was

The German people believed that the Treaty of Versailles was a stab in the back. What acts of Hitler either challenged the treaty or were to gain for Germany territory it had lost in the treaty?

A) German remilitarization of the Rhineland.
B) The creation of a huge German military force by way of voluntary enlistment.
C) The military takeover of Austria by Germany.
D) The forceful takeover of Sudetenland.
E) Giving to Russia the Danzig area through the Nazi Soviet Pact.