Which two are true about accounts, groups, and roles in the Solaris user database?

All Solaris user accounts must have a unique UID number.

A Solaris account name may be any alphanumeric string, and can have a maximum length of 8 characters.

Account UID numbers 0-09 are system-reserved.

The GID for an account determines the default group ownership of new files created by that account.

The groups that an account is a member of are determined by the entries in the /etc/group file.