HELP ASAP!!!!

Mark the statement if it accurately describes European history and geography choose all answers that are correct

A: the English Channel helped protect the island nation of Britain from invasion

B: the Alps are mountains that made napoleons invasion of Italy easy

C: the congress of Vienna redrew the map of Europe to increase the size of the French empire

D: Corsica is a small island in the Mediterranean Sea

E: Spain and Portugal form the Iberian Peninsula