Well, just the fact that the characters are all dressed up for a masquerade party, already adds to the eerie mood. But what really seals the coffin is when Montressor lures Fortunato into the catacombs, and then ties him up. You really get the whole creepo-vibe, when Montressor starts to seal up the "tomb". Hope this helps you a lot.
All of the answers above are correct except:
<span>d. increased productivity
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When long-term stress strikes, a person may feel the negative symptoms of the disorder which are evidenced by all of the three answers; whereas the last answer seems to be a positive effect.
<span>Circe advises Odysseus sacrifice six men to Scylla (a six headed monster) rather than risking his entire ship to Charybdis.</span>