What is included in a brake system inspection?

The correct choice highlights the essential components that need to be checked during a brake system inspection. It involves a thorough examination of various parts that are critical to the braking system's functionality and safety. Checking the brake pads and rotors is vital, as these components wear down over time and directly affect the vehicle's stopping ability. Inspecting the brake lines is also crucial to ensure that there are no leaks, as leaks can lead to a loss of brake fluid, compromising the system's effectiveness. Additionally, checking the brake fluid itself is necessary to ensure it is at the correct level and free from contaminants, which can impact braking performance.

Other options address important aspects but do not encompass the comprehensive scope of a brake system inspection. Evaluating the overall braking force is an important performance aspect, but it does not cover the physical condition of the various components. Testing only the emergency brake functionality is a narrower focus and does not provide a complete picture of the main braking system. Lastly, cleaning brake components, while beneficial, is more of a maintenance task rather than a component of the inspection process itself. Thus, the first choice is the most comprehensive approach to inspecting a brake system.