选择题："); out.println("doGet Hello World!"); out.pr

"); out.println("doGet Hello World!"); out.println(""); out.println(""); out.close(); } public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { res.setContentType("text/html"); PrintWriter ut = res.getWriter(); out.println(""); out.println(""); out.println("doPost Hello World!"); out.println(""); }}

A.一个HTML页面，页面上显示doGet Hello World!

B.一个HTML页面，页面上显示doPost Hello World!

C.一个空白的HTML页面

D.错误信息