Question: Provided a cascade multistage amplifier network, their pole frequencies obtained are f1=10Mhz, f2=12Mhz, f3=20Mhz, f4=16Mhz. What is the approximate higher cutoff frequency of the cascaded network?
Options
A : 3.4 Mhz
B : 8 Mhz
C : 5 Mhz
D : 6 Mhz
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