The correct answer is: B. A type of system bus.
PCI (Peripheral Component Interconnect) is a standard computer bus for connecting hardware devices to a computer. It was first released in 1992 and has been widely used in personal computers ever since. PCI is a high-speed bus that can be used to connect a wide variety of devices, including graphics cards, network cards, and sound cards.
A type of monitor is incorrect because PCI is a bus, not a monitor. A monitor is a device that displays information from a computer.
A kind of graphics is incorrect because PCI is a bus, not a graphics card. A graphics card is a device that generates images for a computer monitor.
A modem standard is incorrect because PCI is a bus, not a modem. A modem is a device that allows a computer to communicate with another computer over a telephone line.
None of these is incorrect because PCI is a bus.