Which command is an SNMPv3-specific command that an engineer can use only in Cisco IOS XE?

A.
snmp-server user remoteuser1 group1 remote 10.12.8.4

B.
snmp-server host 172.16.1.33 public

C.
snmp-server community comaccess ro 4

D.
snmp-server enable traps wireless

Explanation:
SUMMARY STEPS
1. enable
2. configure terminal
3. snmp-server group [group-name {v1 | v2c | v3 [auth | noauth | priv]}] [read read-view] [write write-view] [notify notify-view] [access access-list]
4. snmp-server engineID {local engine-id | remote ip-address [udp-port udp-port-number] [vrf vrf-name] engine-id-string}
5. snmp-server user user-name group-name [remote ip-address [udp-port port]] {v1 | v2c | v3 [encrypted] [auth{md5 | sha} auth-password]} [access accesslist]
6. end

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/snmp/configuration/xe-3se/3850/snmp-xe-3se-3850-book/nm-snmp-snmpv3.html#GUID-54F1E297-
CE1D-45FE-9751-B8D129606010