Given： String value = getServletContext（）.getInitParameter（"foo"）； in an HttpServlet and a web applicationdeployment descriptor that contains： <context-param> <param-name>foo</param-name> <param-value>frodo</param-value> </context-param> Which two are true？（）
- AThe foo initialization parameter CANNOT be set programmatically.
- BCompilation fails because getInitParameter returns type Object.
- CThe foo initialization parameter is NOT a servlet initialization parameter.
- DCompilation fails because ServletContext does NOT have a getInitParameter method.
- EThe foo parameter must be defined within the element of the deployment descriptor.