A、This can be accomplished using the Response.Cookies collection in order to store the name ofthe theme that is selected by the client.
B、This can be accomplished by retrieving the required theme name from the Session object everytime the client visits a page.
C、This can be accomplished by retrieving the required theme name every time the client visits apage.
D、This can be accomplished by retrieving the required theme name from the Application objectevery time the client visits a page.