The Difference Between Hitler's Failed Attempt at Anschluss in 1934

The difference between Hitler's failed attempt at Anschluss in 1934 and his success in 1938 was

A) the decision of the people of Austria to support the move.
B) Mussolini's support rather than opposition, which had been the case in 1934.
C) the growing strength of the Nazi party in Austria by 1938.
D) the failure of the French and British to protest the move.
E) the fact that the League of Nations was no longer involved in overseeing Germany's actions on a regular basis.