Read the sentence below to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Choose the option with that part as your answer. If there is no error, choose 'D' as your answer. (Ignore the errors of punctuation, if any).
He is wiring for the last four hours
He is wiring
for the
last four hours
No error.
Correct answer is A
He has been wiring