The fact that he can joke about it says alot about his character
Her greatest fear is herself
I believe the answer is: A) because he wants to address citizens immediate concerns
When citizens hears the news about a loss battle, their morale would took a hit and their support for the army to join the war would start decreasing. Because of this, Churchill address the issue in order to keep the morale high and the citizens do not lose hope with the cause.
D) All of the above
They really like to get you to support or do whatever they want you to do by any means.
Maybe internal conflict? Not 100% sure but about 70%