When looking at permissions in a Linux operating system the permissions represent read (a value of 4), write (a value of 2), and execute (a value of 1). The 3 levels you would usually see in a directory listing are for the owner, group owner, and other users. This means a file that was read and execute enabled would be represented by 500 or the string r-x------. A file that had full permissions for the owner but only read and execute would be either 755 or rwxr-xr-x. There are extended permissions that can be set as well, pick all of the following that are correct.

The GUID bit allows the file to be executed by any user as if they were the files group owner.

Every process running has three sets of permissions (RUID, EUID, and SUID)

The SUID bit allows the file to be executed by any user as if they were the files owner.

The GUID allows graphical interfaces to be run, without this programs can only execute on the command line.

The SUID but forces a file to run in memory for speedy execution.