The correct answer is C. ROM BIOS.
The ROM BIOS is a small program that is stored on a chip on the motherboard. It is the first program that is executed when the computer is turned on. The ROM BIOS initializes the hardware and then loads the operating system from the hard drive.
RAM BIOS is a type of BIOS that is stored in RAM. It is used to provide additional features and functionality that are not available in the ROM BIOS. However, RAM BIOS is not as stable as ROM BIOS and can be lost if the power is lost.
CMOS is a type of memory that is used to store system configuration information, such as the date, time, and hard drive settings. It is powered by a small battery so that it does not lose its contents when the power is turned off.
Hard disk information is the data that is stored on the hard drive. This includes the operating system, programs, and files. The hard drive is not active until the operating system has been loaded.
None of the above is not a valid option.