Find out whether there is any grammatical error in below sentence. Ten kilometres / are / a / long distance.

The correct answer is: E. No error

The sentence “Ten kilometres are a long distance” is grammatically correct. The subject “Ten kilometres” is plural, so the verb “are” is also plural. The article “a” is used before singular nouns, so it is correct to use “a long distance” in this sentence.

The other options are incorrect for the following reasons:

• Option A: “Ten kilometres” is the subject of the sentence, so it cannot be the verb.
• Option B: “are” is the correct verb to use with the subject “Ten kilometres.”
• Option C: “a” is the correct article to use before singular nouns, so it is incorrect to use “a” before the plural noun “Ten kilometres.”
• Option D: “long distance” is a noun, so it cannot be the verb.