What does the Riegner Telegram imply about knowledge of the Holocaust outside of Eastern Europe?
A.
It was based on reports that were difficult to confirm until relatively late in the war.
B.
Those in authority largely ignored it until forced to by public opinion.
C.
It was widely believed to be a hoax until the production of eyewitnesses.
D.
Those in Western Europe had heard of the atrocities but refused to believe in them.