Answer:
True.
Explanation:
It is true that the actions, words and feelings of the narrator and other characters can develop the existence of a character, but the actions, words and feelings of that character are also important for his own existence. In this case, in a nutshell, we can affirm that the interaction between the characters and the description of that interaction by the narrator is what defines and develops the existence of all elements of the text, including the existence of the characters.
One pun is where Fortunato reveals that he is a member of the Freemasons and Montresor says that he too is a "mason." It is a pun because he does not mean a "Freemason"; he means a mason, a craftsman who does brickwork, the kind Montresor plans to perform on Fortunato to seal him in the catacombs forever.
Aim to keep everything factual and based on reality