Which of the Following Statements About Hiring Accounting or Fraud

Which of the following statements about hiring accounting or fraud professionals in bankruptcy proceedings is NOT correct?

A) If the trustee wants to employ attorneys, accountants, or other professionals to represent or assist the trustee, the trustee has to get the court's approval.
B) All the professionals must be employed under Code section 327
C) The retention of a fraud examiner or investigator in a bankruptcy proceeding must be approved by the court
D) U.S. trustees require the services of professionals to be categorized and have developed broad categories of service.