The answer is: C
Explanation
The correct option is C: 6 years or 65 years of age whichever is earlier.
This is the period of appointment of the Comptroller and Auditor-General of India (CAG), according to Article 148 of the Constitution of India. The CAG is appointed by the President of India by a warrant under his hand and seal. He can be removed by the President on the same grounds and in the same manner as a judge of the Supreme Court¹. He does not hold his office till the pleasure of the President.
Option A (6 years) and option B (Upto 65 years of age) are incorrect, as they are only part of the correct answer. Option D (Upto 62 years of age) is incorrect, as it is not mentioned in the Constitution or any other source.