Select the most appropriate meaning of the given idiom.
Out of the blue
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. Completely unexpectedly.
Idiom 'Out of the blue' means 'without warning; unexpectedly'.
For example: One day, out of the blue, she announced that she was leaving.
Therefore, the most appropriate meaning of the given idiom is 'completely unexpectedly'
Hence, the correct answer is Option 3 i.e. Completely unexpectedly.