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 your answer in the Answer Sheet against the corresponding letter i.e. (a) or (b) or (c). If you find no error, your answer should be indicated as (d).

The hundred-rupees notes that he gave them for the goods bought from them looked genuine but later they reliably learnt that the notes were all counterfeit.