Who stated the definition: 'Administrative law is the law relating to administration. It determines the organization, powers and duties of administrative authorities'?

Which of the following is NOT encompassed within the broad scope of Administrative Law?

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: In the British administrative system, citizens can challenge administrative officials in courts if the officials misuse their authority. Reason R: The rule of law protects citizens from the arbitrary exercise of power by ensuring that all government officials are subject to the law and accountable before the courts. In the light of the above statements, choose the most appropriate answer from the options given below: