In a closed-loop process control system, what statement concerning feedback is true as it relates to stability and the direction of error displacement?

Correct Answer: Option C — Negative feedback is used to minimize instability by pushing the system in the opposite direction as the error displacement.

Negative feedback is essential for system stability. By generating a corrective action in the opposite direction of the error displacement, the controller forces the process variable back toward the set point, effectively damping oscillations and preventing the system from running away or becoming unstable.