Which of the following is most concerned with personnel security?

A.
Management controls

B.
Operational controls

C.
Technical controls

D.
Human resources controls.

Explanation:
Personnel security always have to deal more with Operational controls, Operational
controls provide the guidelines and the correct procedures to implement the different operations.
Management controls are usually used only by managers. Human resources and Technical
Controls are not related to personal security as the question states. See the different control
definitions in your CISSP documentation.