The Strong Performance of Commercial Banks During the Decade Before

The strong performance of commercial banks during the decade before 2007 was due to

A) the stability of interest rates during this period.
B) the ability of banks to shift credit risk from their balance sheets to financial markets.
C) the contraction of the number of banks and thrifts.
D) the growth in the number of thrifts and credit unions.
E) All of the above.