The correct answer is: D. Buffer memory
Buffer memory is a temporary storage location that is used to hold data that is being transferred between two devices. In the case of the CPU and the printer, the buffer memory is used to hold the print output while it is being transferred from the CPU to the printer. This allows the CPU to continue processing other jobs while the printer is printing the output.
External memory is a type of memory that is not directly accessible by the CPU. It is typically used to store data that is not currently being used by the CPU, such as programs and files.
I/O memory is a type of memory that is used to store data that is being transferred between the CPU and an I/O device, such as a keyboard or a printer.
ROM is a type of memory that is permanently stored on a chip and cannot be changed. It is typically used to store the BIOS, which is the basic input/output system that controls the computer’s hardware.
None of the above is not a correct answer.