What type of control deals with system auditing and usability?

The correct choice relating to system auditing and usability is directive control. Directive controls are designed to guide the behavior of individuals and systems within an organization and to ensure compliance with policies, standards, and regulations. When it comes to system auditing, directive controls provide the framework and established procedures for conducting audits, outlining the necessary steps and protocols to evaluate the effectiveness and compliance of systems. This ensures that the system's usability meets required standards while also safeguarding against risks and vulnerabilities.

In terms of usability, directive controls can help set expectations and criteria that need to be fulfilled for a system to be deemed user-friendly and compliant with organizational policies. Through documentation, training, and procedures, users are informed about the system's expected use and operations, which helps in maintaining a balance between security and accessibility.

Other types of controls play distinctly different roles. Corrective controls focus on taking action after a security breach or incident has occurred, while detective controls are primarily concerned with identifying and monitoring potential security incidents as they happen. Recovery controls would relate more to restoring systems after a security incident has taken place rather than guiding the behavior or establishing audits. Thus, the emphasis on guiding, documenting, and governing behavior aligns directive control with the concepts of system auditing and usability.