正解:C
The network administrator would configure scope options to set NTP settings for a specific subnet within DHCP. Scope options are settings that apply to a range of IP addresses that are assigned by a DHCP server. Scope options can include parameters such as default gateway, DNS server, and NTP server. By configuring the NTP server option for a specific scope, the network administrator can ensure that the devices in that subnet synchronize their clocks with the same time source. Reference: CompTIA Network+ N10-008 Certification Study Guide, page 121; The Official CompTIA Network+ Student Guide (Exam N10-008), page 5-11.