The correct answer is the option C:
- C: Today the phrase "Achilles´ Heel" refers to a weakness that can lead to downfall. This refers to the story of a powerful Greek Warrior who had been submerged in the in the river Styx during childhood.
Because this option is the one that describes better the meaning of the phrase "Achilles´ Hell".
It is present because they are watching the movie right now.
The answer is no punctuation needed<span />