There have been two such ________ in the past.
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occurrances
-
occurences
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occurances
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occurrences
D
Correct answer
Explanation
The correct spelling is 'occurrences' with double 'c' and double 'r'. The base word is 'occur' (with one 'r'), and when adding the suffix '-ence', both the 'c' and 'r' are doubled to maintain pronunciation. This follows standard English spelling rules for polysyllabic words ending in consonant-vowel-consonant patterns.