Which of the following best explains the idiom 'Once in a blue moon'?
- A. The final problem in a series of problems that makes a situation unbearable
- B. To avoid talking about something directly
- C. To do something in the easiest or cheapest way, often sacrificing quality
- D. Very rarely ✓
Correct answer
D. Very rarely
Explanation
'Once in a blue moon' means very rarely.