Meee plzzzzz First!............
<span>"rws" means that the user has permissions to read, write and setuid. "r" means the user can read the file and "w" means that the user can write to the file. "s" stands for "setuid" (set user id) is a permission bit that allows the users to execute a program with the permissions of its owner. The "s" can also mean "setgid" (set group id) is a bit that allows the user to execute a program with the permissions of the group owner.</span>
A primary key is the answer. =)
The answer is B
Explanation: In contrast, a computer's hard disk or SDD is its long-term memory, where things are stored more or less permanently. ... Nearly all computers also have some way to store information for longer-term access, too.
