Which statement is correct?

Registers are used in computer systems as places to store a wide variety of data, such as addresses, program counters, and data necessary for program execution. Put simply, a register is a hardware device that stores binary data. Registers are located on the processor so information can be accessed very quickly.

Registers are used in computer systems as places to store a wide variety of data, such as addresses, program counters, and data necessary for program execution. Put simply, a register is a hardware device that stores binary data. Registers are located on the main memory chip so information can be accessed very quickly.

Registers are used in computer systems as places to store a wide variety of data, such as addresses, program counters, and data necessary for program execution. Put simply, a register is a hardware device that stores binary data. Registers are located on the input$/$output systems and buses so information can be accessed very quickly.

Registers are used in computer systems as places to store a wide variety of data, such as addresses, program counters, and data necessary for program execution. Put simply, a register is a hardware device that stores binary data. Registers are located on the hard disks so information can be accessed very quickly.