Choose the correct meaning of the idiom: "Once in a blue moon"

A. Once in a month
B. By weekly
C. On rare occasions
D. Every now and then

Occurrence: Concept Academy Notes

Choose the correct meaning of the idiom: "Once in a blue moon" | | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database

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