[单项选择]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.