The correct answer is letter D
In this case the best explanation is experience.
Experience is a form of direct knowledge, which confirms itself. Experience is true knowledge, which does not require or involve belief, since knowledge excludes any need to believe.
Just considering that the Pope is in Vatican City State (surrounded by the Italian soil and thereby in Europe), I would assert Catholicism.
A date which will live in infamy—the United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan.