-A: Inaccurate. Napoleon entered Italy in 1796 closer to the coast than the Alps. However, the mountains could be said to have protected his northern flank.
-B: True in 1940 against Germany in the Operation Sealion, But False in 1066 in the Invasion By William the Conquerer in the Battle of Hastings.
-C: Almost True. Corsica is in the Mediterranean Sea but isn't Small. it have a land area of about 8500 square kilometers and is the fourth largest
-D: Wrong. The objective was to return boundaries to the situation that existed before the Napoleonic Wars.
-E: Almost True, but don't forget Gibraltar