Which public administration theorist emphasized the term 'morality' over 'ethics' in administrative conduct?

Given below are two statements: one is labeled as Assertion (A) and the other as Reason (R). Assertion (A): Public servants are expected to function with high integrity and ethical standards. Reason (R): Public servants exercise state authority as trustees on behalf of the citizens. In the light of the above statements, choose the correct answer from the options given below:

Consider the following statements regarding the obligations of public servants: 1. They must ensure accountability to the public. 2. They should maintain transparency and fairness in administration. 3. They are expected to promote private interests over public interest. Which of the statements given above are correct?