What Was the Strategy the Romans Used to Defeat the Carthaginian

Multiple Choice

What was the strategy the Romans used to defeat the Carthaginian general, Hannibal, who had been occupying and ravaging parts of the Italian peninsula for about fifteen years?

A) The Romans used modern technology they had taken from the Etruscans and Greeks.
B) The Romans invaded Carthage which forced Hannibal to leave Italy to defend his homeland.
C) The Romans gained control of Sicily so that Hannibal could not get reinforcements.
D) By using a "scorched earth" policy depriving Hannibal's army of food and supplies.
E) By confronting the Carthaginians in Spain to divert Hannibal's attention away from Italy.