Out of the four alternatives, choose the incorrectly spelt word.

Concept

In a spelling-identification question, compare each written form with its established dictionary form. The decisive evidence is the complete letter sequence, especially vowels and suffixes that are often confused.

A word is misspelt when its written sequence differs from the standard form; pronunciation alone is not a reliable guide to English spelling.

Application

• Conspicuous is the dictionary form, built with con- and the ending -spicuous.

• Bureaucracy is the dictionary form, combining bureau with -cracy.

• Exhilarate is the dictionary form, with ex- followed by hilarate.

• Perseverence differs from the dictionary form perseverance: the noun ends in -ance, not -ence.

Cross-check

Replacing the final -ence in Perseverence with -ance gives perseverance, the form listed in standard dictionaries. The other three offered forms already match their dictionary spellings.

Result

Therefore, Perseverence is the incorrectly spelt word.