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Consider a unity-gain negative feedback system consisting of the plant $G(s)$ (given below) and a proportional-integral controller. Let the proportional gain and integral gain be $3$ and $1,$ respectively. For a unit step reference input, the final values of the controller output and the plant output, respectively, are

$$G(s)=\frac{1}{s-1}$$

  1. $\infty, \infty$
  2. $1,0$
  3. $1,-1$
  4. $-1,1$

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