Which of the following documents is used to provide a standard approach to the assessment of NIST SP 800-53 security controls?

Which of the following documents is used to provide a standard approach to the assessment of NIST SP 800-53 security controls?

A.
NIST SP 800-37

B.
NIST SP 800-41

C.
NIST SP 800-53A

D.
NIST SP 800-66