The correct answer is GRUB. GRUB stands for GRand Unified Bootloader, and it is commonly used to manage booting for multiple operating systems, including both Windows and Linux.
Here’s a brief overview of the other options:
- BIOS: This is firmware that initializes and tests hardware during the booting process, but it doesn't manage dual-booting.
- X.500: This is a standard for directory services and has no relation to boot loaders.
- BASH: This is a command-line shell and scripting language for Unix and Linux systems, not a boot loader.
So, among the options given, GRUB is the appropriate boot loader for starting a computer with both Windows and Linux.