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

Regular
Criminal
Couragous
Garbage

The correct answer is C. Couragous. The correct spelling is “courageous”.

A. Regular is spelled correctly. It means “happening or done at fixed times or intervals”.
B. Criminal is spelled correctly. It means “a person who has committed a crime”.
D. Garbage is spelled correctly. It means “waste material, especially refuse from homes and businesses”.