Step 1: Determine authorized arrestors under criminal procedure law. - Magistrate: Magistrates are empowered to arrest and issue arrest warrants. - Private Citizen: Citizens can arrest if they observe a crime in progress. - Police Officer: Police officers are authorized to arrest under the Criminal Procedure Code (CrPC). - Accused Person: An accused individual lacks the authority to arrest. Step 2: Conclusion. The correct answer is (A), (B) and (C) only.