Final answer:
The correct option is D) all of the above. Brake drums serve multiple automotive functions: they are bolted to the wheels, located at each end of the axles, and hold the brake shoes and linings; therefore, the correct answer is D) all of the above.
Step-by-step explanation:
The answer to the question about brake drums is D) all of the above. Brake drums are components of a vehicle's braking system and have several functions. First, they are indeed bolted to the wheels; this connection is vital for transferring the force from the brakes to slow down the wheel's rotation. Second, brake drums are located at each end of the vehicle's axles, which allows them to effectively serve their purpose for both the front and rear wheels, if so equipped.
Lastly, they hold the brake shoes and linings, which are key elements that create the necessary friction to slow down or stop a vehicle when pressure is applied to the brake pedal. Brake drums are most commonly found on older or smaller vehicles, as many modern cars have shifted to disc brake systems for their increased effectiveness and cooling capability.