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Byju's Answer
Standard IV
Mathematics
Calendar
Choose the be...
Question
Choose the best option:
An event that happens once in two years
A
Biannual
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B
By-annual
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C
Biennial
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D
Two-annual
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Solution
The correct option is
A
Biennial
Biennial refers to an event that occurs every two years. Thus C is the required answer.
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