Final answer:
The /var directory is used for system-specific data like logs, spool files, and temporary files. The correct answer to the question is Option 1: Yes, signifying that /var holds data that often changes.
Step-by-step explanation:
The /var directory in Unix-based systems is indeed used for storing system-specific data that is frequently changing. This includes things such as logs (/var/log), spool files, and temporary files required for running applications (/var/tmp). Option 1: Yes, is the correct answer.
Understanding the filesystem hierarchy is crucial for Linux system administration, and the /var directory plays a key role. For instance, /var/mail holds user mailboxes, and /var/www is often the directory for web server content.