All but Which of the Following Is a Reason Policymakers

All but which of the following is a reason policymakers are concerned about the strength of the rebound from the 2007-2009 financial crisis:

A) banks would make credit expensive and difficult to obtain.
B) investors would be cautious about buying securitized assets.
C) households would prefer to save more and borrow less.
D) the pace of technological change would slow.