Select the most appropriate idiom that can substitute the highlighted words in the given sentence.
He was sacked from his job because of a grave error on his part.

Correct option is D

The correct substitution of the highlighted words is (d) Himalayan blunder.
Explanation:

• “Himalayan blunder” is an idiomatic expression meaning a huge or grievous mistake.
• The word “grave error” implies a serious or severe error, and this idiom is the best match.

Example: He realized his Himalayan blunder only after the damage was done.

Other Options: · (a) raining cats and dogs – refers to heavy rain. (Hindi: मूसलाधार बारिश)
· (b) minding one’s p’s and q’s – means being on one’s best behavior. (Hindi: शिष्टाचार से पेश आना)
· (c) picking holes in one’s cot – not a valid idiom. (Meaningless in this context)