Assertion (A): The salary and conditions of service of the Comptroller and Auditor General of India cannot be varied to his disadvantage after he is appointed.Reason (R): The office of the Comptroller and Auditor-General of India is a constitutional office.Codes:

• A. Both A and R are individually true and R is the correct explanation of A
• B. Both A and R are individually true but R is not the correct explanation of A
• C. A is true but R is false
• D. A is false but R is true