3. Which risk factor do you have the most control over? your environment your skin color your height your diet

Your diet

Explanation:

The risk factor that you have most control over is your diet. Your diet is one of the things that you can most easily control. More importantly, it is also one of the most important factors in your health. A poor diet can bring a variety of medical problems, some of them very serious. Therefore, it is very important to watch your diet and to ensure that this is healthy and varied.

Your diet is the most controllable.