You are implementing an ASP.NET page. You add and configure the following ObjectDataSource.  The page will be called with a query string field named pid. You need to configure the ObjectDataSource control to pass the value of the pid field to GetProductsByProductId method. What should you do? （）

• A、Replace the asp：QueryStringParameter with the following declaration.
• B、Replace the asp：QueryStringParameter with the following declaration.
• C、Add the following event handler to the Selecting event of the ObjectDataSource control.
• D、Add the following code segment to the page’s code-behind.