Which of the following is NOT a function of central bank?

The correct answer is option 4: None of the above

All of the listed options are indeed functions of a central bank:

• Providing banking facilities to the government is a core function, as the central bank acts as the government's banker.
• Lending to the government happens through ways such as the issuance of government bonds or temporary loans.
• Lending to commercial banks is a regular function of central banks, often done through mechanisms like repo operations.