The correct answer is (a).
The Goiporia Committee was appointed in 1972 to review the working of the banking system in India. The committee recommended a number of measures to improve the efficiency and profitability of the banking system.
The Nanjundappa Committee was appointed in 1979 to review the working of the railways in India. The committee recommended a number of measures to improve the efficiency and profitability of the railways.
The Rangarajan Committee was appointed in 1982 to review the balance of payments situation in India. The committee recommended a number of measures to improve the balance of payments situation.
The Rekhi Committee was appointed in 1985 to simplify the export and import procedures in India. The committee recommended a number of measures to simplify the export and import procedures.
Option (a) is not correctly matched because the Goiporia Committee was appointed to review the working of the banking system, not the improvement of banking service.