Answer:
B. Germany.
Explanation:
The "Fireside Chats" as they are termed, are the numerous 'declarations/ announcements' of then-president Franklin D. Roosevelt broadcasted all over the nation. This broadcast contains the president addressing the American people's fears and concerns regarding their national security during the days leading up to the Second World War.
"Fireside Chat #19" is a declaration of war against Japan after the attack on the American soil. This declaration of war against Japan has been a grave act of breaking peace terms and thus, now officially a war. But Roosevelt continued to state that with this war against Japan, it must be remembered that Germany has been behind all these attacks for it has promised Japan a share of the spoils of war. "Germany has been telling Japan that if Japan did not attack the United States, Japan would not share in dividing the spoils with Germany when peace came. She was promised by Germany that if she came in she would receive the complete and perpetual control of the whole of the Pacific area -- and that means not only the Ear East, but also all of the Islands in the Pacific, and also a stranglehold on the west coast of North, Central and South America", he commented. This is why along with the need to attack Japan, America also needs to defeat Germany for life to be safe in American soil.