A Computer network which is used within a building is called:

Correct option is A

A Local Area Network (LAN) is a type of network used to connect computers and other devices within a small geographic area such as a building or a campus. LANs are typically used in homes, schools, and offices to enable communication between devices, share resources like printers, and provide access to the internet.
Important Key Points:
1. LAN (Local Area Network) - It connects devices within a small geographical area, such as a single building or a campus.
2. High-Speed Connectivity - LANs typically offer high data transfer speeds and low latency, making them suitable for smaller areas.
3. Examples of LAN Usage - LANs are commonly used in offices, schools, and home networks.
4. Network Size - LANs are generally limited to a single building or a group of nearby buildings, unlike larger networks such as MAN and WAN.
Knowledge Booster:
• WAN (Wide Area Network) (option b) - A network that covers a large geographic area, such as a country or continent. WANs are used to connect multiple LANs.
• MAN (Metropolitan Area Network) (option c) - A network that spans a city or large campus, larger than a LAN but smaller than a WAN.