Final answer:
The three main components of a disc brake system are the rotor, caliper, and brake pads, which work together to slow or stop a vehicle.
Step-by-step explanation:
The three major assemblies that make up a disc brake are c) Rotor, caliper, and brake pads. The rotor is the disc part of the disc brake system that rotates with the wheel. The caliper is the part that houses the brake pads and straddles the rotor, using hydraulic pressure to clamp the brake pads onto the rotor to slow or stop the vehicle. Lastly, the brake pads are the friction material that press against the rotor to create the friction needed to slow down the wheel's rotation.