The correct answer is A. Delhi.
The Reserve Bank of India (RBI) is the central bank of India. It was established on 1 April 1935 in accordance with the Reserve Bank of India Act, 1934. The RBI is headquartered in Mumbai, Maharashtra, India.
The RBI is responsible for formulating and implementing monetary policy, regulating the financial system, and issuing currency in India. It also acts as the banker to the government of India and the commercial banks in the country.
The RBI is a statutory body and is governed by a central board of directors. The board is headed by the governor of the RBI, who is appointed by the government of India.
The RBI has a number of functions, including:
- Formulating and implementing monetary policy
- Regulating the financial system
- Issuing currency in India
- Acting as the banker to the government of India and the commercial banks in the country
- Supervising and regulating banks and other financial institutions
- Promoting the development of the financial system
- Conducting research on monetary and financial matters
- Providing financial services to the government and the public
The RBI is an important institution in the Indian economy. It plays a key role in maintaining financial stability and promoting economic growth.
The other options are incorrect because the Reserve Bank of India is not headquartered in those cities.