To know the correct answer, firstly we'll define all given terms.
A. Filtering
Filtering of a signal involves selectively allowing certain frequencies of the signal to pass through while attenuating or blocking others.
B. Amplification
Amplification of a signal is the process of increasing its strength or magnitude, typically using electronic devices like amplifiers.
C. Minimisation
Signal minimization is a process which reduces unwanted elements, in a signal while retaining essential information.
D. Sampling
Sampling is the process of converting a continuous signal into a discrete sequence by capturing its values at specific time interval.
E. Quantization
Quantization is the process of approximating continuous signal values by mapping them to a discrete set of levels or values.
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