The National Information Assurance Certification and Accreditation Process (NIACAP) is the minimum standard process for the certification and accreditation of computer and telecommunications systems that handle U.S. national security information. Which of the following participants are required in a NIACAP security assessment? Each correct answer represents a part of the solution. Choose all that apply.

A. Information Assurance Manager
B. Designated Approving Authority
C. IS program manager
D. User representative
E. Certification agent