Which Spring's RestTemplate class methods will return a ResponseEntity?

public final String foo(HttpServletRequest request, BindingResult bindResult, ModelMap model) {

    model.addAttribute("abc", 123);

    return "foo";

}

When the view is displayed in the browser, it's URL is "http://mydomain/foo?abc=123".

Which of the following statements is true?

Given the method below:

@RequestMapping(value = "/foo", method = RequestMethod.GET)

public final String foo(HttpServletRequest request, BindingResult bindResult, ModelMap model) {

    model.addAttribute("abc", 123);

    return "foo";

}

When the view is displayed in the browser, it's URL is "http://mydomain/foo?abc=123".

Which of the following statements is true?

    public ResponseEntity<String> fooBar2() {

      String json = "jsonResponse";

      HttpHeaders responseHeaders = new HttpHeaders();

      responseHeaders.setContentType(MediaType.APPLICATION_JSON);

      return new ResponseEntity<String>(json, responseHeaders, HttpStatus.CREATED);

    }

Which of the following statements is correct?

Given the following method:

@RequestMapping(method=RequestMethod.GET, value="/fooBar")

    public ResponseEntity<String> fooBar2() {

      String json = "jsonResponse";

      HttpHeaders responseHeaders = new HttpHeaders();

      responseHeaders.setContentType(MediaType.APPLICATION_JSON);

      return new ResponseEntity<String>(json, responseHeaders, HttpStatus.CREATED);

    }

Which of the following statements is correct?