What Is the Difference Between a User and a Supervisor

What is the difference between a user and a supervisor power-on password?

A) The user password allows access to a limited number of BIOS settings such as time and date and the boot sequence options; whereas the supervisor password has full access to change all BIOS settings.
B) The user is a Windows password. The supervisor power-on password is a BIOS password.
C) The user password is used to configure basic things like hardware installation and software application installation. The supervisor power-on password is used to gain access to the BIOS.
D) Move 3 to the down on position; move 4 and 5 to the up off position. The user password is used to access Windows configuration parameters. The supervisor password is used to install hardware, configure the BIOS, install applications, and have total control over the hardware and software in the system.