Yes. A naval officer lands his ship on the island and rescues the boys.
The Answer is C.
This is why. The word 'literal' can be defined simply as "face value". For example if some one says I literally haven't slept all night. You would see that this means they have not slept at all.
The answer is A, or By underlining or italicizing it. Doing so draws eye-coordinated attention and emits a connotation that the word is significant to something more overlying than what is said.