Net Interest Income (NII) is the difference between the interest a bank earns on its interest-earning assets (e.g., loans, bonds) and the interest it pays on its interest-bearing liabilities (e.g., deposits, borrowings). Changes in market interest rates directly affect NII by:

• Influencing the rates at which loans are issued and the rate at which bonds generate income.
• Changing the cost of funding (e.g., deposit rates or wholesale borrowing costs).

The impact on NII depends on the bank’s asset-liability management (ALM) practices, including how the repricing of assets and liabilities is aligned.

A is incorrect: While investment banking fees are a source of income for some banks, they are not directly related to net interest income. NII is specifically about interest-related earnings and expenses.

C is incorrect: Loan loss provisions are influenced by credit risk, which can be indirectly affected by interest rates (as higher rates can lead to more defaults), but the question asks about the direct impact on NII.

D is incorrect: While interest rates can influence loan demand, the question asks about the direct impact on NII, which is a function of existing assets and liabilities and their respective interest rates, not the volume of new applications.