Directions: The following sentence tests your ability to recognise grammar and usage errors. The sentence contains either a single error or no error at all. The error, if there is any, will be from underlined and lettered part of sentence. If the sentence contains an error, select the appropriate underlined part that must be changed to make the sentence correct. If the sentence is correct, select choice (E). In choosing your answer, follow the requirements of standard written English.

(A) An one sided decision (B) never proves (C) fruitful (D) in the long run. (E) No error