In which of the following instances may a police officer arrest a person, without an order from the Magistrate and without a warrant? 1. If a person has committed a cognizable offence in the presence of a police officer 2. A credible information has been received that a person has committed a cognizable offence punishable with imprisonment for a term which may be less than seven years and the police officer is satisfied that arrest is necessary for proper investigation of offence 3. If a person is reasonably suspected of being a deserter from any of the Armed Forces of the Union Select the answer using the code given below: