The web server of www. domain .com has updated several images on its web page. However, the web page seen by the user still shows the old images. In a sniffer trace taken at the user PC, what message would confirm the observed problem?
A.
HTTP HTTP/1.1 200 OK
B.
TCP 80 > 1681 [FIN,ACK]
C.
Date: Fri, 20 Oct 2000 11:48:52 GMT
Last-Modified: Wed, 20 Oct 1999 15:41:49 GMT
D.
Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache
E.
Date: Fri, 20 Oct 2000 11:48:52 GMT
Last-Modified: Fri, 20 Oct 2000 11:48:52 GMT