Find out that word, the spelling of which is wrong.

Overwhelm
Omlette
Offence
Opponent

The correct answer is C. Offence. The correct spelling is offense.

A. Overwhelm is a verb that means to overcome or defeat someone or something completely.
B. Omlette is a dish made from beaten eggs cooked in a frying pan.
D. Opponent is a person who competes against another in a game, sport, or other contest.