GATE Electronics and Communications (EC) 2017 Shift 2 Solved Paper

A unity feedback control system is characterized by the open-loop transfer function
$\mathit{G}\left(\mathit{s}\right)=\frac{10\mathit{K}\left(\mathit{s}+2\right)}{{\mathit{s}}^3+3{\mathit{s}}^2+10}$
The Nyquist path and the corresponding Nyquist plot of G(s) are shown in the figures below.

If 0 < K < 1, then the number of poles of the closed-loop transfer function that lie in the right-half of the s-plane is