खालीलपैकी कोणते विधान चुकीचे आहे ?

The correct answer is Option D (None of the above.).

Key Points:
• Role and Powers of the Comptroller and Auditor General (CAG):
• Constitutional Device (1): Dr. Ambedkar highlighted that the CAG is one of the bulwarks of the Indian Constitution, ensuring parliamentary accountability over public finance.
• Guardian of Public Purse (2): Under Article 148, the CAG is the guardian of the public purse and upholds the financial administration of the Union and the States.
• Propriety Audit (3): In addition to legal and regulatory audits, the CAG conducts a discretionary 'propriety audit' to examine wisdom, faithfulness, and economy, bringing cases of wastefulness/impropriety to Parliament's notice even when formally legal.
• Since statements (1), (2), and (3) are valid descriptions of the CAG, None of the above (Option 4) is the correct answer.
• Key Takeaway: The CAG acts as guardian of the public purse, conducting both regulatory and propriety audits.