You want to log in to the router and make a configuration change. After logging in as the root user, what is the next command you must enter?（）

A. help log messages
B. man log messages
C. man syslog
D. help syslog

A. A brief description of commands and their default values
B. The serial number and version number of the device used to open a support case with JTAC
C. A list of all the active hardware alarms on the device
D. A display of the current configuration while in operational mode

A. user@router# ping 10.10.10.1
B. user@router# run ping 10.10.10.1
C. user@router> ping 10.10.10.1
D. user@router> request ping 10.10.10.1