The correct option is this: THE SPEECH IS EFFECTIVE BECAUSE PRESIDENT WILSON OUTLINES THE EMOTIONAL REASONS FOR ENTERING THE WAR.
In the excerpt given above, President Wilson was talking to the congress, making them see the gravity of Germany's decision to sink all vessels that come their way and outlining the reasons why America should join the war. President Wilson argued that joining the war is necessary not because America want to take revenge or show off its weapons but to fight for human rights of the people. President Wilson speech was effective because he was able to successfully outline the reasons why America should join the war.