Which of the following is a concern regulators have about securitization? A. The risk of acting as a credit enhancer and underestimating the need for loan-loss reserves B. The risk of being an underwriter for asset-backed securities that cannot be sold C. The risk that loan servicers will be unable to satisfactorily monitor loan performance D. The risk that unqualified trustees will fail to protect investors in asset-backed instruments E. All of the other responses shown here are concerns regulators have about securitization