Concept:Chief Ade Amaka is a public official who abuses his office for personal gain.Explanation:Chief Ade Amaka serves as Minister of External Relations.Instead of serving the people, he uses his position to embezzle public funds.He also takes part in other criminal activities while in office.His conduct shows that he does not care about the trust citizens place in their leaders.This makes him a clear example of betrayal of public trust.Answer:A. betrayal of public trust.