Which of the following NIST C&A documents is the guideline for identifying an information system as a National Security System?

Which of the following NIST C&A documents is the guideline for identifying an information system as a National Security System?

A.
NIST SP800-53

B.
NIST SP 800-59

C.
NIST SP 800-37

D.
NIST SP 800-53A