Which command can yield a report that is easier to read in terms of memory usage?

The command that yields a report that is easier to read in terms of memory usage is the one using the option '-h'. This option stands for "human-readable" and reformats the output to use appropriate units (e.g., KB, MB, GB), making it much simpler for a user to understand the amount of memory being displayed.

When you run the command with the '-h' option, it adjusts the output so that large numbers are shown in a more digestible format rather than in raw bytes, which can be cumbersome to interpret. For example, instead of seeing memory values like 2097152 (for 2 GB), it would display 2G, allowing a quick and clear understanding of the system’s memory usage at a glance.

In contrast, the other options provide numerical outputs in different formats that are less intuitive. For instance, '-m' shows memory in megabytes, '-g' in gigabytes, and '-b' in bytes, none of which provide the same level of clarity without needing to perform conversions in your head. The human-readable format facilitates quick assessments of memory status, making it particularly useful for users who may not be deeply familiar with computing memory metrics.