Concept:The interest rate charged by a central bank on loans given to commercial banks is known as the bank rate.
Explanation:The Central Bank of Nigeria acts as the lender of last resort to commercial banks.
When commercial banks borrow money from the Central Bank, they must pay a special rate for those loans.
This rate is called the bank rate, not the general interest rate or bank charges.
Bank charges refer to fees for bank services, while interest rates apply to loans between banks and customers.
Therefore, the correct option is bank rates.
Answer:D. bank rates