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

Itching
Interview
Interupt
Irrigate

The correct answer is C. Interupt. The correct spelling is “interrupt”.

A. Itching is a correct spelling. It is the act of scratching oneself because of an itch.
B. Interview is a correct spelling. It is a meeting between two people, usually one who is seeking employment and another who is considering hiring them.
D. Irrigate is a correct spelling. It is to water land artificially, especially by means of canals or pipes.

The word “interupt” is misspelled. The correct spelling is “interrupt”. It means to break into someone’s speech or activity.