Select the most appropriate idiom/phrase that can substitute the highlighted segment in the given sentence.
This incident occurred without a warning.

Correct option is B

Option (b) is the correct meaning of the given idiom.
Given Idiom:Bolt from the blue
Meaning: A sudden and completely unexpected event. (Hindi meaning: आकस्मिकघटना)
Example: Her resignation was a bolt from the blue for everyone in the office.

Other related idioms and their meanings:
· On thin ice – In a risky or dangerous situation.
· Ignorance is bliss – Not knowing something is more comfortable.
· Play devil’s advocate – To argue against a position for the sake of discussion.