How does the use of actual names and dialogue in a night to remember serve the author’s purpose?

by presenting the characters as people in a real-life situation
by indicating which conversations occurred and which did not
by suggesting why the event described is so well known
by showing how many passengers were on the ship

Which words in this excerpt from the count of monte cristo can be used as synonyms to determine the meaning of the word grotto? dant? s entered the second grotto. the second grotto was lower and more gloomy than the first; the air that could only enter by the newly formed opening had the mephitic smell dant? s was surprised not to find in the outer cavern. he waited in order to allow pure air to displace the foul atmosphere, and then went on. 1. air 2. opening 3. mephitic 4. cavern 5. pure 6. atmosphere