Which of the following outputs comes from the command free?

This output is typically generated by the `uptime` command, which provides information about how long the system has been running, the number of users logged in, and the system load averages. It does not pertain to memory usage, making it incorrect for the `free` command.

This output is associated with the `mpstat` command, which presents CPU usage statistics. It details the average CPU utilization percentages across various categories, but does not provide any memory-related information, thus disqualifying it as a valid output of the `free` command.

This output is produced by the `df` command, which displays disk space usage for filesystems. It includes details about sizes, used space, available space, and mounting points, but it is not related to memory usage, making it an incorrect choice for the `free` command output.