Define process gain Kp in a FOPDT model and explain how it influences closed-loop response.

• A. Kp is the time delay of the process.
• B. Kp is the noise level of the measurement.
• C. Kp is the static gain from input to output; higher Kp yields larger process output for a given input, affecting overall loop gain and potential for overshoot.
• D. Kp is the final setpoint value.

Answer: (C)