You are implementing an ASP.NET Web site. The Web site contains a Web service named CustomerService. The code-behind file for the CustomerService class contains the following code segment. You need to ensure that the GetProducts method can be called by using AJAX.Which two actions should you perform？（）

• A、Apply the WebService attribute to the ProductService class.
• B、Apply the ScriptService attribute to the ProductService class.
• C、Apply the WebMethod attribute to the GetProducts method.
• D、Apply the ScriptMethod attribute to the GetProducts method.