The correct answer is: B. Internal memory
Internal memory is a computer’s primary storage, which is used to store programs and data that are currently being processed by the CPU. It is also known as main memory, primary memory, or RAM (random-access memory).
Mass memory is a secondary storage device that is used to store large amounts of data for long-term storage. It is also known as secondary storage, auxiliary storage, or offline storage.
Non-volatile memory is a type of memory that retains its contents even when the power is turned off. It is used to store data that needs to be accessed even when the computer is turned off, such as the operating system and system files.
PROM (programmable read-only memory) is a type of non-volatile memory that can be programmed once and then read only. It is used to store firmware, which is the software that controls the hardware of a device.
E. None of these is the correct answer.