Matching the institutions with their corresponding articles: - Comptroller and Auditor General of India (CAG): Article 148 deals with the appointment, oath, and duties of the CAG. (A -> 3) - Finance Commission: Article 280 provides for the establishment of a Finance Commission. (B -> 2) - Administrative Tribunal: Article 323A (in Part XIVA) deals with Administrative Tribunals. (C -> 4) - Union Public Service Commission (UPSC): Article 315 (in Part XIV) deals with the Public Service Commissions for the Union and for the States. (D -> 1)