Select the most appropriate meaning of the idiom
She was within a hair's breadth of winning.

Correct option is C

Option (c) is the correct meaning of the given idiom.
Idiom: Within a hair’s breadth – to come extremely close to something, especially success or failure. (बाल बराबर दूरी पर होना)
Example: The car missed hitting the pole by a hair’s breadth.
Three related idioms and their meanings:
• By the skin of one's teeth – barely succeed (कड़ी मुश्किल से सफल होना)
• Touch and go – uncertain until the last moment (नाजुक स्थिति)
• Close shave – narrow escape (बाल-बाल बचना)