How should a DNS client be configured?

A.
Edit the /etc/netsvc.conf file to have a nameserver and a domain search order.
B.
Edit the /etc/resolv.conf file to have a nameserver and a domain search order.
C.
Edit the /etc/resolv.conf file to have a nameserver, domain, and domain search order.
D.
Edit the /etc/netsvc.conf file to have a nameserver, domain, and domain search order.