For a stable system having two or more gain crossover frequencies the phase margin is measured

at the gain crossover frequencies

at lowest gain crossover frequency

at highest gain crossover frequency

For a stable system having two or more gain crossover frequencies the

1.	For a stable system having two or more gain crossover frequencies the phase margin is measured
A.	at lowest gain crossover frequency
B.	at highest gain crossover frequency
C.	at the gain crossover frequencies
D.	none of the above
Answer» C. at the gain crossover frequencies