Direction: Read these sentence to find out whether there is any grammatical mistake/error in. the error if any, will be in one part of the sentence. Mark the part with the error as your answer. If there is no error, mark 'No error' as your answer. (Ignore the errors of punctuation, if any)

The house where the dead man was found (a)/ is being guarded by police (b)/ to prevent it from being entered (c)/ and the evidence interfered with. (d)/ No error (e)

[SBI (PO), 2003]