You are implementing an ASP.NET MVC 2 Web application. The URL with path /Home/Details/{country} will return a page that provides information about the named country. You need to ensure that requests for this URL that contain an unrecognized country value will not be processed by the Details action of HomeController. What should you do？（）

Add the ValidateAntiForgeryToken attribute to the Details action method.
B. Add the Bind attribute to the country parameter of the Details action method. Set the attribute’s Prefix property to Country.
Create a class that implements the IRouteConstraint interface. Configure the default route to use this class.
D. Create a class that implements the IRouteHandler interface. Configure the default route to use this class.