A first-order low-pass filter of time constant T is excited with different input signals (with zero initial conditions up to t = 0). Match the excitation signals X, Y, Z with the corresponding time responses for t ≥ 0:X: Impulse P: 1 −

• A. X→R, Y→Q, Z→P
• B. X→Q, Y→P, Z→R
• C. X→R, Y→P, Z→Q
• D. X→P, Y→R, Z→Q