The answer is definitely A.
Your answer is.......... read correctly By passing laws and expanding the role of the Federal Government, Congress has increased presidential power as well.
Because the war in Europe was in a lot of Allied countries, for example France. They wanted to focus on the enemies that were at their front door first and posed the most imminent threat over Japan which was on the other side of the globe.
Roosevelt did not mention Germany and the war in Europe in his speech because his main aim was to make sure that America stayed out of the war. He did not want the American people to become involved in foreign wars. What he did do, however, is provide weapons to the Allies to help them fight the war. It would seem that by providing the Allies with weapons he was hoping that the citizens of the USA would never become involved in the war.