Which passage most clearly uses an ethos appeal?

A. I repeat that the United States can accept no result save victory, final and complete. Not only must the shame of Japanese
treachery be wiped out, but the sources of international brutality, wherever they exist, must be absolutely and finally broken.

B. Of necessity there will be delays in officially confirming or denying reports of operations, but we will not hide facts from the country if
we know the facts and if the enemy will not be aided by their disclosure.

C. There is no such thing as security for any nation - or any individual - in a world ruled by the principles of gangsterism.

D. But there will be a clear and definite shortage of metals for many
kinds of civilian use.