The correct answer is asset threats. A threat is any circumstance or event with the potential to cause harm.
The most important reason for identifying threats is to know from what do the assets need protection and what is the likelihood that a threat will occur. Threats cannot be eliminated, but can be anticipated, and safeguards put in place to minimize their impact.
Operations Security provides audit and monitoring for mechanisms, tools and facilities which permit the identification of security events and documentation of subsequent corrective actions. Source: State of Nebraska - Information Security Systems (ISS) Security Officer Instruction Guide.

ISO/IEC 15408-1 is the International Standards version of the
Common CriteriA. The ISO approved and published the CC text as
the new International Standard (IS) 15408 on December 1, 19994. As
of this writing the Common Criteria version is 2.1.
Answer b is the Code of Practice for Information Security
Management (BS7799) developed by the British Standards Institute.
The BS7799 standard effectively comes in two parts:
ISO/IEC 17799:2000 (Part 1) is the standard code of practice and
can be regarded as a comprehensive catalogue of recommended
security policy.
BS7799-2:1999 (Part 2) is a standard specification for an
Information Security Management System (ISMS). An ISMS is the
means by which Senior Management monitors and controls their
security, minimizing the residual business risk and ensuring that
security continues to fulfill corporate, customer, and legal
requirements.5
*Answer DoD 5200.28-STD is the Orange Book, the DoD Trusted Computer System
Evaluation Criteria.
*Answer CSC-STD-002-85 is the Green Book, the DoD Password Management
Guidelines.
Source: The Common Criteria Project.

Explanation

Administrative, technical and physical controls are categories of access control
mechanisms.
Logical and Technical controls are synonymous. So both of them could be eliminated as possible
choices.
Physical Controls: These are controls to protect the organization's people and physical
environment, such as locks, gates, and guards. Physical controls may be called "operational
controls" in some contexts.
Physical security covers a broad spectrum of controls to protect the physical assets (primarily the
people) in an organization. Physical Controls are sometimes referred to as "operational" controls in
some risk management frameworks. These controls range from doors, locks, and windows to
environment controls, construction standards, and guards. Typically, physical security is based on
the notion of establishing security zones or concentric areas within a facility that require increased
security as you get closer to the valuable assets inside the facility. Security zones are the physical
representation of the defense-in-depth principle discussed earlier in this chapter. Typically,
security zones are associated with rooms, offices, floors, or smaller elements, such as a cabinet or
storage locker. The design of the physical security controls within the facility must take into
account the protection of the asset as well as the individuals working in that area.
Reference(s) used for this question:
Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition
((ISC)2 Press) (Kindle Locations 1301-1303). Auerbach Publications. Kindle Edition.
and
Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition
((ISC)2 Press) (Kindle Locations 1312-1318). Auerbach Publications. Kindle Edition.

It was David Bell and Leonard LaPadula who, in 1973, first described the
DoD multilevel military security policy in abstract, formal terms. The Bell-LaPadula is a
Mandatory Access Control (MAC) model concerned with confidentiality. Rivest, Shamir and
Adleman (RSA) developed the RSA encryption algorithm. Whitfield Diffie and Martin
Hellman published the Diffie-Hellman key agreement algorithm in 1976. David Clark and
David Wilson developed the Clark-Wilson integrity model, more appropriate for security in commercial activities.
Source: RUSSEL, Deborah & GANGEMI, G.T. Sr., Computer Security Basics, O'Reilly,
July 1992 (pages 78,109).