The correct answer is Four years. Explanation & Key Takeaways: • The tenure of the Central Board of Directors of the Reserve Bank of India (RBI) is four years. • The Central Board of Directors is the highest decision-making body of the RBI, responsible for the bank's overall supervision and direction. • It is constituted as per the provisions of the Reserve Bank of India Act, 1934. • The Central Board of Directors consists of the Governor, Deputy Governors, and other members appointed by the Government of India. • The tenure of these members ensures continuity in decision-making and stability in the functioning of the RBI. Related Concepts: • Reserve Bank of India (RBI): The RBI is India's central banking institution, established on 1 April 1935, under the Reserve Bank of India Act, 1934. • Composition of the Central Board: It includes the Governor, four Deputy Governors, and 10 non-official directors nominated by the government, along with other members as per the Act. • Functions of the Board: The Central Board formulates policies for the regulation of the issuance of currency, management of foreign exchange, and ensuring monetary stability in the country. • Legal Framework: The RBI operates under the Reserve Bank of India Act, 1934, and the Banking Regulation Act, 1949. • Importance of Tenure: A four-year tenure provides the board members sufficient time to implement policies effectively, ensuring long-term economic and financial stability.