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Given that the root locus plot of P(s) is now as follows:
Three controllers (one P controller, one PD controller, and one PID controller) have been implemented as the controller C(s) in the closed-loop system shown at the start of this quiz. A few step responses are listed below.
| Response A | Response B | Response C | Response D |
|---|---|---|---|
Image failed to load: Response A | Image failed to load: Response B | Image failed to load: Response C | Image failed to load: Response D |
For each controller, determine the best matching best-case step response of the closed loop system. Each controller should be matched to exactly one response. (The responses are not drawn to the same scale, but are already showing all the salient features.)