The correct option is D d
The option that states the part with the error is the correct option.
These
parts a, b and c form a complete sentence. 'Fish and chips' is a compound noun that refers to a popular dish. It's the subject of the sentence. It performs the action 'is', followed by the subject complement 'favourite dish for lunch'.
The parts do not contain any error. They are grammatically correct and have a complete meaning.
Hence, options A, B and C are all wrong answers, as they do not contain any error.
Option D is correct as it states: NO ERROR