For an LTI system, the Bode plot for its gain is as illustrated in the figure shown. The number of system poles $N_{p}$ and the number of system zeros $N_{z}$ in the frequency range $1 Hz \leq f\leq 10^{7} Hz$ is
1. $N_{p}=5, N_{z}=2$
2. $N_{p}=6, N_{z}=3$
3. $N_{p}=7, N_{z}=4$
4. $N_{p}=4, N_{z}=2$