The correct option is D Mouth organ : Percussion instrument
People usually blow air into certain musical instruments to play them. Some musical instruments make sounds when we blow into them. E.g., flute, been, shehnai, mouth organ, bagpipe etc. and they are known as wind instruments.
Other musical instruments like drums and dholak produce sound when we hit on them and they are known as percussion instruments.
Some musical instruments such as guitar and violin produce sound on plucking the strings and they are known as string instruments.