A Systems Administrator Received an Alert from the Central Monitoring

Multiple Choice

A systems administrator received an alert from the central monitoring tool indicating /var/mail/logs on a Linux system is running out of disk space. Before troubleshooting the issue, the administrator needs to verify the total disk space available on the volume. Which of the following commands would allow the administrator to gather the required information?

A) df
B) ls
C) fsutil
D) du