The open-loop transfer function of a plant is given as $G(s)=\dfrac{1}{s^{2}-1}$. If the plant is operated in a unity feedback configuration, then the lead compensator that can stabilize this control system is
- $\frac{10(s-1)}{s+2}$
- $\frac{10(s+4)}{s+2}$
- $\frac{10(s+2)}{s+10}$
- $\frac{2(s+2)}{s+10}$