The correct answer is B. Winston Churchill's wants to reassure the British people that entering the war is the best option for Britain.
In the famous speech<em> "Blood, Toil, Tears, and Sweet</em>" of May 1940, in the House of Commons, he addressed the Parliament to form a government that put parties aside, forget differences and declare war to Germany.
Another great speech from Churchill was the "<em>Finest Hour</em>" in June 1940, in the House of Commons, where Churchill explained the Parliament the complicated situation after France had just capitulated and the Prime Minister insisted in the war with Germany.