An underdamped second order system having a transfer function of the form \(\mathrm{M}(s)\) \(=\frac{K \omega_{n}^{2}}{s^{2}+2 \xi \omega_{n} s+\omega_{n}^{2}}\) has frequency response plot as shown below, then the system gain \(\mathrm{K}\) and the damping ratio approximately are
(a) \(\mathrm{K}=1, \xi=0.2\)
(b) \(\mathrm{K}=1, \xi=0.3\)
(c) \(\mathrm{K}=2, \xi=0.2\)
(d) \(\mathrm{K}=3, \xi=0.3\).

[M(jo)] 2.5 1.0 00. 3 (0)