The following question in this section has a sentence with three underlined parts labeled (a), (b) and (c). Read each sentence to find out whether there is any error in any underlined part and select your answer i.e., (a), (b) or (c). If you find no error, your answer should be indicated as (d).
The policemen prevented us from (a) entering into (b) the hall (c). No error (d)