Statement The central Bureau of Investigations (CBI) receives the complaint of an officer taking bribe to do the duty he is supposed to. Course of action I. CBI should try to catch the officer red-handed and then take a strict action against him. II. CBI should wait for some more complaints about the officer to be sure about the matter.

• if only I
• if only II
• both I and II follow
• if either I or II follows