An amplifier with resistive negative feedback has two left half plane poles in its open-loop transfer function. The amplifier

a) will always be unstable at high frequency

b) will be stable for all frequency

c) may be unstable, depending on the feedback factor

d) will oscillate at low frequency

(d) will be stable for all frequencies

Hint : 1. Negative feedback system always make the system more stable

(2) Open loop poles lies on left half plane of s domain