Financial Enterprises, More Popularly Referred to as Financial Institutions, Provide

Financial enterprises, more popularly referred to as financial institutions, provide a variety of services. Which of the below is NOT one of these?

A) Transform financial assets acquired through the market and constituting them into a different, and more widely preferable, type of asset-which becomes their liability.
B) Exchange financial assets on behalf of customers but not for their own accounts.
C) Manage the portfolios of other market participants.
D) Assist in the creation of financial assets for their customers, and then sell those financial assets to other market participants.