To reconstruct a baseband signal from its samples we need to

To reconstruct a baseband signal from its samples, we need to pass the samples from:

a high pass filter with the same bandwidth of the original signal is needed.

a band stop filter with the same bandwidth of the original signal is needed.

a band pass filter with the same bandwidth of the original signal is needed.

a low pass filter with the same bandwidth of the original signal is needed.

Solution

here to reconstruct the baseband signal we have to pass it through the low pass filter with the same bandwidth of the original signal,