What is an Effector?

• A. A device that measures changes
• B. A policy for data retention
• C. A team/individual who acts upon the comparison by issuing new instructions to input
• D. A system that archives logs

Answer: (C)

An effector is the component that implements the chosen response after a comparison shows how the actual state differs from the target. It translates decisions into actions that change the system, driving it back toward the desired condition. The description that fits this is a team or individual who, after evaluating the comparison, issues new instructions to the input to steer the process. The other options describe things that measure, govern, or store data rather than enact changes in the system, so they don’t perform the corrective action an effector provides.