OnTrackingFound ImageTarget vuforia

hi look i have this code

   private void OnTrackingFound()
     {
         Renderer[] rendererComponents = GetComponentsInChildren<Renderer>();
 
         // Enable rendering:
         foreach (Renderer component in rendererComponents) {
             component.enabled = true;
         }
 
         Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " found");
         
 }

I have 3 targets, but i wanna that just ONE target of those 3 when tracking found do somethingm but just on this target not in the other targets.. does annyone know how to??

please help i so stock