Which sentence most accurately evaluates the spoken rhetoric of Churchill's "Their Finest Hour"?

A. Churchill's optimistic delivery makes the listener feel secure that Britain will eventually defeat Germany.
B. Churchill's serious tone makes it seem as though he is giving bad news rather than rallying support.
C. Churchill's candid view that the Battle of Britain is about to begin reinforces his credibility.
D. Churchill's emphasis on the cunning of the enemy is more likely to cause fear than resolve.