Some of the sentences are grammatically correct and some are incorrect. Find out which part of the sentence has an error and mark that part. If there is no error , mark that part as your answer.
`("I asked two persons")/a` `("the way to the station")/b` `("but none of them knew it")/c` `("No error")/d`

Explanation

(c) .neither of them. in place of .none.