'A bolt from the blue' means:
AA planned event
BA storm
CA sudden, unexpected event
DA daily routine
Answer & Solution
Correct answer: C. A sudden, unexpected event
1. Idioms have figurative meanings unrelated to literal words.
2. This idiom describes something sudden and unforeseen.
3. Hence a sudden, unexpected event.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Idioms_