单项选择题
A.snmp-server trap enable
snmp-server sysadmin host 10.1.101.1
B. snmp-server enable trap
snmp-server sysadmin host 10.1.101.1
C. snmp-server trap enable
snmp-server host 10.1.101.1 sysadmin
D. snmp-server enable trap
snmp-server host 10.1.101.1 sysadmin