This NIST publication provides information on the elements of InfoSec, key roles and responsibilities, an overview of threats and vulnerabilities, a description of the three NIST security policy categories, and an overview of the NIST RM Framework and its use, among other topics needed for a foundation in InfoSec.

A. SP 800-12, Rev. 1: An Introduction to Information Security (2017)
B. SP 800-18, Rev. 1: Guide for Developing Security Plans for Federal Information Systems (2006)
C. SP 800-34, Rev. 1: Contingency Planning Guide for Federal Information Systems (2010)
D. SP 800-55, Rev. 1: Performance Measurement Guide for Information Security (2008)
E. ?

Answer: A