Can a chopper signal square wave be used to perform AM demod

Can a chopper signal (square wave) be used to perform AM demodulation?

a. yes, in any case

b. yes, using a bandpass filter

c. yes, as long as the DC is removed

d. No

e. None of the above

Solution

b. yes using a bandpass filter

because the bandpass filter will eliminate the harmonics of the square wave.