Final answer:
The parent bank holding company assists bank subsidiaries with asset and liability management, strategic planning, loan review, and business development but does not provide deposit insurance(option d), which is typically provided by entities like the FDIC.
Step-by-step explanation:
The parent bank holding company assists bank subsidiaries with several functions to ensure their successful operation, but not all options listed are among these functions. Specifically, the parent bank holding company provides support with asset and liability management, which involves managing risks related to the bank's assets and liabilities, and strategic planning, which includes setting long-term goals and determining the actions and resources required to achieve them.
Additionally, loan review processes are another area where bank holding companies assist, which involves checking the quality and performance of loans to mitigate risks. Interestingly, business development is also a key function, which entails identifying and capitalizing on new business opportunities.
However, when it comes to deposit insurance, it is not the responsibility of the bank holding companies to provide this. Deposit insurance is typically provided by a separate entity, like the Federal Deposit Insurance Corporation (FDIC) in the United States, to protect depositors in full or in part against losses caused by bank failure. Therefore, the correct option that the parent bank holding company does not assist bank subsidiaries with is e. deposit insurance.