Discussion
An energy signal is one whose
Answer: B
An energy signal has finite total energy, which forces its average power over all time to be zero; a single pulse is the standard example. A power signal is the complement, with infinite energy and finite non-zero average power, which is what a sinusoid or any periodic signal is. Boundedness of amplitude is a separate property that neither implies. And band limitation concerns the spectrum's extent rather than the signal's energy.
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