In the given question, a part of the sentence is printed in bold. Below the sentence, three alternatives to the bold part are given which may help improve the sentence. Choose the option that reflects the correct use of the phrase in the context of the sentence. In case the given sentence is correct, your answer is (E) i.e. No correction required. Although I don?t have any special bond with the rank and folder of the Labour Union, I know some top engineers. (i) in the rank and folders of the Labour Union (ii) with the rank and portfolio of the Labour Union (iii) with the rank and file of the Labour Union