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.
Churchill most likely began his speech by discussing Britain's recent battle loss <span>because he wants to address citizens immediate concerns.</span>
