A. Every now and then
B. On rare occasions
C. Bi-weekly
D. None of these
🧠 Explanation:
The idiom “once in a blue moon” means on rare occasions. For English students, this highlights idiomatic expressions, making it a key topic for studying language, cultural phrases, and communication. It conveys rarity. Understanding this ensures expressive clarity. It’s essential for mastering idioms in communication. Studying this idiom offers insights into how language conveys frequency, crucial for English, journalism, and communication.
