Which library is cited as containing publications that provide guidance for security missions?

The correct choice is NTTP, which stands for Navy Tactics, Techniques, and Procedures. This library contains a collection of publications that offer detailed guidance on a variety of Navy operations, including those related to security missions. NTTP documents provide tactics and procedures tailored to scenarios that Naval forces might encounter, helping personnel understand the best practices for achieving mission success. These directives are vital for ensuring that security operations are carried out effectively and are aligned with overarching Navy strategies.

In contrast, other choices focus on different aspects of Navy operations and administrative procedures. OPNAVINST refers to the Chief of Naval Operations' instructions, which cover more broad and administrative topics rather than specific tactical guides. CINCGLOBAL is related to the unified command of global forces and does not directly pertain to tactical publications. CNICINST represents instructions from the Chief of Naval Installations Command concerning policies and procedures for Navy installations, which again may not provide the specific tactical guidance needed for security missions.