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