E7F12 — Amateur Extra Class

E7F12 : Which of the following is generally true of Finite Impulse Response (FIR) filters?
A FIR filters can delay all frequency components of the signal by the same amount
B FIR filters are easier to implement for a given set of passband rolloff requirements
C FIR filters can respond faster to impulses
D All these choices are correct
Correct Answer: FIR filters can delay all frequency components of the signal by the same amount