Final answer:
A bus network refers to a connection mode where multiple devices share the same set of wires. This is used in computer networks as well as in electrified transportation systems like light rail, where a single cable or wire provides the connection or power to multiple devices or vehicles. So the correct answer is option B.
Step-by-step explanation:
When multiple devices share the same set of wires for connection, this mode is referred to as a bus network. In a bus network, each device is connected to a single cable (the bus), and data sent from one device is available to all devices on the network, although only the intended recipient, defined by the address within the data packet, actually takes the data.
This is a common method for connecting multiple devices in a network and is used due to its simplicity and cost-effectiveness.
Examples of bus networks include the traditional Ethernet networks and the setup for some light rail systems where vehicles are powered by overhead wires or a third rail on the ground.