Consider a data acquisition with a sampling frequency (fs) of 100 Hz. After signal acquisition, the FFT plot showed clear peak amplitudes at 40 Hz and 80 Hz. It is known that the original signal only consists of frequencies between 100 Hz and 300 Hz. a) Is aliasing expected with fs= 100 Hz? Recommend a sampling frequency to acquire the signal smoothly without aliasing. b) If there is aliasing, what could have been the actual signal frequencies that correspond to the perceived frequencies of 40 Hz and 80 Hz signals with fs=100 Hz