Choose the correct option that conveys the meaning of the idiom : 'Achilles' heel' :

A weak point

The correct option that conveys the meaning of the idiom "Achilles' heel" is: A weak point

Here's why:

• Mythological origin: The idiom originates from the Greek myth of Achilles, a legendary warrior who was invincible except for his heel, where his mother held him when dipping him in the River Styx to make him immortal. This single vulnerability ultimately led to his death.
• Metaphorical usage: Today, "Achilles' heel" is used metaphorically to refer to any person's or thing's one weak spot, a fatal flaw or vulnerability that can lead to their downfall.