Many Financial Institutions Faltered During 2007-2008 Because

Many financial institutions faltered during 2007-2008 because:

A) most of these institutions had large sums of assets tied up in loans to farmers who were not in a position to pay off the loans.
B) they were not lent funds by banks to undertake major investments.
C) there was a fall in housing prices and a decline in the stock market that doubled with the problem of leveraging.
D) there was imprudent management or even criminal activity on the part of bank officers.
E) most of these institutions had to hold a large proportion of their assets as required reserves.