Which is the highest average input power shown here that would be safe to operate a 24 Mbps 802.11g signal so that spectral regrowth is not a problem?

An amplifier has a 1 dB compression point of 32 dBm and a gain of 20 dB.

Which is the highest average input power shown here that would be safe to operate a 24 Mbps 802.11g signal so that spectral regrowth is not a problem?
A . 5 dBm
B . 0 dBm
C . 5 dBm
D . 10 dBm

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Answer: B