Which TCPIP component must be configured to allow the following commands to work?

Which TCPIP component must be configured to allow the following commands to work?
TCPIP> MAP “/root” DKAO:
TCPIP> ADD EXPORT “/root/user” /HOST=*
TCPIP> ADD PROXY USER001 /UID=10/GID=11/HOST=*

A.
REXEC

B.
RLOGIN

C.
FTP server

D.
NFS server