Give the name of return types in a controller action method?

There are 9 return types(base) of Action in MVC .However we generally use ActionResult Class because it implement all of these. 1..ContentResult 2. .EmptyResult 3. FileResult 4. HttpStatusCodeResult 5.JavaScriptResult 6.JsonResult 7.RedirectResult 8.RedirectToRouteResult 9.ViewResultBase