Be smart (a)/ not only in dress (b)/ and also in action.(c)/ No error (d)

Each question in this section has a sentence with three underlined parts labelled (a), (b) and (c ). Read each sentence to find out whether there is any error in any underlined part and indicate you answer in the Answer Sheet against the corresponding letter i.e., (a) or (b) or (c). If you find no error, you answer should be indicated as (d). As an officer(a) he not only was competent (b) but also honest (c) No error (d)