Concept:In banking, the lender of last resort is the institution that supplies emergency funds to banks facing financial crisis.
Explanation:The central bank supervises and controls the entire banking system.
When commercial banks face a shortage of funds or liquidity problems, they are unable to borrow from other commercial banks.
At such times, the central bank provides them with financial support as the last possible source of borrowing.
This function is known as the lender of last resort.
Commercial banks, merchant banks, and mortgage banks all depend on the central bank during financial distress.
Answer:A. central bank