Concept:The central bank is the apex bank that supervises and assists commercial banks.
Explanation:The central bank acts as the lender of last resort to commercial banks.
This means it provides emergency financial support when banks face shortages.
A commercial bank provides services to the public, such as deposits and personal loans.
Only the central bank has the sole authority to issue currency and manage the banking system.
Therefore, the major difference is that the central bank serves as the lender of last resort.
Answer:A. serves as lender of last resort