Select the most appropriate option that can substitute the highlighted segment in the given sentence.
Once bitten, thrice shy.

Correct option is A

Idiom Meaning:
Once bitten, twice shy - after having a bad experience, one becomes cautious in the future.
Explanation:
• The correct idiomatic expression is “Once bitten, twice shy.” The word "thrice" is incorrect here.
Correct: Once bitten, twice shy.
Option Meanings:
Twice shy – becomes cautious after a bad experience.
Always shy – not related to past experience.
Once shy – not an idiom.
Never shy – completely opposite in meaning.