Which of the following is true regarding Investment Banks? A. When Glass-Steagal was repealed in 1999, commercial banks and Investment banks had to be separate entities. B. As of 2010, stand alone Investment banks are numerous. C. As a result of the financial crisis of 2008, all stand-alone Investment banks either failed, were merged into commercial banks, or became commercial banks. D. Under the Glass-Steagal act, commercial banks were allowed to operate as Investment banks.