Final answer:
A WAN, which spans larger geographical areas and connects multiple LANs, differs from a LAN that is confined to a smaller, local area like a building or campus.
Step-by-step explanation:
Wide Area Network (WAN) and Local Area Network (LAN) are both types of networks but they differ significantly in scope and function.
A LAN is a network that is typically confined to a small geographical area, often a single building or campus. It is used to connect personal computers, printers, and other devices within this limited area, allowing for the sharing of resources and information.
In contrast, a WAN spans a much larger geographical area, even worldwide. A WAN interconnects multiple LANs, which can be wide apart, using various telecommunication links. The internet itself is the largest example of a WAN.
The correct answer to the student's question is B) A WAN is made up of LANs. A WAN connects multiple LANs that are geographically distant from each other.