The correct answer is: D. None of these
Virtual memory is a technique that allows a computer to run programs that require more memory than is physically available on the computer. It does this by creating a virtual address space for each program, which is a range of addresses that the program can use to access memory. The operating system then maps these virtual addresses to physical addresses in RAM, as needed.
Virtual memory is not related to virtual reality. Virtual reality is a computer-generated simulation that can be similar to or completely different from the real world. It can be used for entertainment, education, training, and other purposes.
Virtual memory is not a form of ROM. ROM stands for read-only memory. It is a type of memory that can only be read from, not written to. This means that the data in ROM is permanent and cannot be changed.
Virtual memory is not a form of RAM. RAM stands for random-access memory. It is a type of memory that can be both read from and written to. This means that the data in RAM can be changed as needed.
I hope this helps!