the figure displays DSB-FC output spectrum with carrier freq 20 KHZ.

the figure displays DSB-FC output spectrum and carrier freq cannot be determined from figure

the figure displays DSB-SC output spectrum and its shows a two sided power spectrumSelect one:TrueFalse

1. This object displays the frequency spectrum of real- and complex-valued floating- and fixed-point signals.2.It displays power spectrum as default3.It displays  the psd centred around carrier frequency for bpsk by default4.It plots default between -4 to +4 KHz onlySelect one:a. all statements are correctb. none are correctc. 1,2 is correctd. 2,3,  is correcte. 3, 4 is correct

scope = dsp.SpectrumAnalyzer1. This object displays the frequency spectrum of real- and complex-valued floating- and fixed-point signals.2.It displays power spectrum as default3.It displays  the psd centred around carrier frequency for bpsk by default4.It plots default between -4 to +4 KHz onlySelect one:a. none are correctb. all statements are correctc. 2,3,  is correctd. 3, 4 is correcte. 1,2 is correct

scope = dsp.SpectrumAnalyzer1. This object displays the frequency spectrum of real- and complex-valued floating- and fixed-point signals.2.It displays power spectrum as default3.It displays  the psd centred around carrier frequency for bpsk by default4.It plots default between -4 to +4 KHz onlySelect one:a. 1,2 is correctb. none are correctc. all statements are correctd. 2,3,  is correcte. 3, 4 is correct