Multiple choice technology web technology

What are the ways to call a JSP(TestDisplay.jsp) from a Servlet ?

  1. getServletContext().getRequestDispatcher("/DateDisplay.jsp").forward(HttpServletRequest,HttpServletResponse);

  2. sendPage("TestDisplay", HttpServletRequest,HttpServletResponse)

  3. callPage("TestDisplay", HttpServletRequest,HttpServletResponse)

  4. HttpServletResponse.sendRedirect("/TestDisplay.jsp")

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