Multiple users are trying to telnet to the AIX server. They are able to ping the server successfully， but are  getting  the  following  error  message：  telnet：  connect：  A remote  host  refused  an  attempted  connect   operation Which of the following options could be the cause of this problem（）

A.The routing table on the AIX server is incorrect.
B.The IP address in the /etc/hosts file is incorrect，
C.The portmap daemon is not running on the AIX server.
D.The inetd daemon is not running on the AIX server.