Final answer:
The brake pedal pulsation can be caused by warped rotors, and the anti-lock braking system (ABS) doesn't contribute to this issue.
Step-by-step explanation:
Brake pedal pulsation is typically caused by warped rotors. When the brake rotors become unevenly worn or distorted, they can cause the brake pedal to pulsate when pressure is applied. This occurs because the surface of the rotor is no longer smooth, causing inconsistent contact between the brake pads and rotor.
The anti-lock braking system (ABS) does not cause brake pedal pulsation. ABS is designed to prevent the wheels from locking up during braking, enhancing safety and control. It uses sensors to detect wheel speed and modulate brake pressure to each wheel individually.
Therefore, the correct answer is:
C) Both A and B