Click the Exhibit button. Given： 11.<% com.example.Advisor advisor = new com.example.Advisor（）； %> 12.<% request.setAttribute（"foo"， advisor）； %> Assuming there are no other "foo" attributes in the web application，which three are valid EL expressions forretrieving the advice property of advisor？（）

• A、${foo.advice}
• B、${request.foo.advice}
• C、${requestScope.foo.advice}
• D、${requestScope[foo[advice]]}
• E、${requestScope["foo"]["advice"]}