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

Opulence
Offens
Nonsense
Occurrence

The correct answer is C. Nonsense.

The other options, A, B, and D, are all spelled correctly.

Opulence means great wealth or luxury.

Offense means a feeling of displeasure or resentment aroused by a perceived insult to oneself or one’s group.

Occurrence means the fact of something happening or being found.