A user is unable to access a host using the telnet command on a new workstation. The user provided the following output:
user1@w2100z% telnet sys42.abc.com
sys42.abc.com: node name or service name not known
user1@w2100z% getent hosts sys42.abc.com
user1@w2100z% nslookup sys42.abc.com
Server: dns.abc.com
Address: 192.168.224.10#53
Name: sys42.abc.com
Address: 192.168.222.15
user1@w2100z% grep sys42 /etc/hosts
user1@w2100z%
The user is able to access sys42 from an old workstation without issue. What is a possible explanation for this problem?

A.
The sys42 host is down.

B.
The user did NOT use the rlogin command.

C.
The telnet command is NOT in the user’s $PATH variable.

D.
The /etc/nsswitch.conf file is NOT configured to look at DNS for host information.