उत्तर : 3. "छ: वर्ष"
व्याख्या :

The Comptroller and Auditor General shall hold office for a term of six years from the date on which he assumes such office: Provided that where he attains the age of sixty-five years before the expiry of the said term of six years, he shall vacate such office on the date on which he attains the said age.