Directions: Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part will be the answer. If there is no error, mark (E) as the answer. (Ignore errors of punctuation, if any.)

Being more dangerous (A) / than all the criminal, (B) / he was imprisoned (C) / in a special jail. (D) No error (E)

The phrase 'than all the criminal' has a parallelism error. When making comparisons, you must compare like things. The sentence is comparing a person ('he') to 'all the criminal', which should be either 'than all the criminals' (plural noun phrase) or 'than all other criminals'. 'The criminal' suggests a single person, which doesn't match 'all'. Also, the comparative 'more dangerous' requires comparison with others, not with 'the criminal'.