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 is the answer. If there is no error, the answer is 'E'. (Ignore the errors of punctuation, if any).
The Head of the Department advised all the staff to not to indulge in gossip.
The Head of the Department
advised all the staff
to not to
indulge in gossip.
No error
Correct answer is C
not to