Which of the following is a common sign of a damaged control arm?

A common sign of a damaged control arm can indeed encompass a range of symptoms, which is why the option indicating all of the above is correct.

Creaking noises while turning can occur if the control arm's bushings are worn out, resulting in increased movement of the control arm itself. This can create a noise as metal rubs against metal or as the rubber components lose their integrity.

Uneven tire wear is another sign associated with a damaged control arm. The control arm plays a critical role in maintaining proper wheel alignment, and if it is damaged, it can cause misalignment, leading to tires wearing unevenly. This uneven wear can manifest as bald spots on the inside, outside, or center of the tire tread, which is indicative of alignment issues.

Vibrations at high speed are also telling. A bent or damaged control arm can result in the vehicle not tracking correctly while in motion, leading to vibrations felt through the steering wheel or the chassis. This can become more pronounced at higher speeds, as the wheels struggle to maintain proper contact with the road due to misalignment.

Given these factors, a damaged control arm can contribute to all of these symptoms, making it clear why the option stating that all of them apply is the correct choice