The correct answer is: B. buffer
A buffer is a temporary storage area, attached to the CPU, for I/O operations. It is used to store data that is being transferred between the CPU and an I/O device. This allows the CPU to continue processing other instructions while the I/O device is transferring data.
A chip is a small piece of semiconductor material that contains electronic components. It is used to build integrated circuits, which are the basic building blocks of computers.
A register is a small amount of high-speed memory that is directly accessible by the CPU. It is used to store data and instructions that are currently being processed by the CPU.
A core is a single processing unit within a multi-core processor. Each core can execute instructions independently, which allows for faster processing.
E is not the correct answer because it is not a type of storage area.