Among the options provided, the risk factors that you can control include lifestyle choices related to your own health. However, none of the specific options listed describe risk factors that you can directly control. Each of them relates to broader circumstances rather than personal choices.
For a more direct answer, while you cannot control family history, friends’ behaviors, or ethnic group risks, you can control your own health decisions (e.g., not smoking, maintaining a healthy diet, exercising) which can help mitigate the impact of these factors. Therefore, focus on making healthy choices regardless of external influences.