Explanation:

- Accepting Deposits: Commercial banks primarily gather savings from the public as various forms of deposits.

- Advancing Loans: They provide loans to individuals, businesses, and governments, which helps in circulating money in the economy.

- Credit Creation: By granting loans, banks create credit, which effectively increases the money supply in the economy.

- All of these: Commercial banks perform all the above functions, making the overall banking process efficient.

Answer: Option 4 - All of these