Sorry I don’t quite get the question. Could you rephrase it?
Error identification is a type of competitive test where one needs to identify the grammatical errors in a sentence. Though termed as Sentence Correction, most often, problems in this topic need one to only classify sentence errors.
Sand is a noun.
A noun is a person, place, thing, or idea. Sand is a noun because it is a thing.
I believe the answer is C. twelve
For what are you asking about