In the following question, select the alternative which best expresses the meaning of the Idiom or Phrase.
Apropos of nothing

Correct option is B

Option (b) is the correct meaning of the given idiom.
Apropos of nothing: Said when something is mentioned that has no clear connection to what was previously being discussed. (बिना किसी संदर्भ के बात करना)
Example: Apropos of nothing, she suddenly asked if I liked pancakes.
Other related idioms:
· Out of the blue – Unexpectedly.
· Non sequitur – A statement that does not follow logically from the previous one.