Final answer:
Susan should set a Supervisor or Administrator password to restrict access to the BIOS setup program. This allows her to control the modifications made to the system parameters, enhancing system security.
Step-by-step explanation:
If Susan wishes to restrict access to the BIOS setup program, she should consider setting the Supervisor password. The Supervisor password, also sometimes known as the Administrator password, controls access to the BIOS setup program. The BIOS setup program is where one can modify key system parameters, like boot order, among others. By adding a Supervisor or Administrator password, Susan can control who can make changes to these settings, hence providing an additional layer of security to her system.
Learn more about BIOS Password