The correct option is C. Wide Area Network (WAN). Explanation of the Correct Answer A Wide Area Network (WAN) is designed to cover large geographical areas, which can include cities, countries, and even continents. Here’s a step-by-step breakdown of why WAN is the correct answer:

1. Definition of WAN: A WAN is a telecommunications network that extends over a large geographical area. It connects multiple local area networks (LANs) and metropolitan area networks (MANs) across long distances. This is typically achieved using leased telecommunication lines, satellites, or other long-distance communication technologies.
2. Geographical Coverage: WANs can span vast distances, making them suitable for connecting networks across different regions, countries, and even continents. For example, the internet itself is a global WAN that connects millions of private, public, academic, business, and government networks.
3. Technologies Used: WANs utilize various technologies such as MPLS (Multiprotocol Label Switching), Frame Relay, and satellite communications to facilitate long-distance data transmission. These technologies enable WANs to maintain high-speed connections over long distances.
4. Examples of WANs: Common examples of WANs include the internet, corporate networks that connect multiple offices in different cities or countries, and telecommunications networks that provide services across large areas.

Explanation of Why Other Options Are Incorrect Now, let’s analyze the other options and explain why they are not suitable for covering continents: A. Metropolitan Area Network (MAN): - Definition: A MAN is designed to cover a specific city or a large campus. It typically connects multiple LANs within a limited geographical area. - Coverage Limitation: While a MAN can connect networks within a city, it does not extend beyond that. Therefore, it cannot cover continents, making it unsuitable for this question. B. Personal Area Network (PAN): - Definition: A PAN is a small network, typically used for connecting personal devices like smartphones, tablets, and laptops within a very limited range (usually within a few meters). - Coverage Limitation: PANs are designed for personal use and are not intended to cover large areas, let alone continents. This makes them irrelevant to the question. D. Wireless Area Network (WAN): - Definition: The term "Wireless Area Network" is not a standard term in networking. It may refer to wireless networks that cover a specific area, but it is not a recognized category like WAN, LAN, or MAN. - Coverage Limitation: If we interpret it as a wireless network covering a specific area, it would still be limited in range and not capable of spanning continents. Therefore, it does not fit the criteria of the question. Summary of Key Points

• WANs are designed to cover large geographical areas, including continents, by connecting multiple networks over long distances.
• MANs are limited to city or campus coverage and cannot extend beyond that.
• PANs are for personal device connectivity within a very short range and are not suitable for large-scale networking.
• Wireless Area Networks (if interpreted as a standard term) do not have the established definition or capability to cover vast distances like WANs.

Revision Summary

• WANs can connect networks across cities, countries, and continents.
• MANs are limited to metropolitan areas and cannot cover large distances.
• PANs are for personal device connections and are very localized.
• Wireless Area Networks are not a standard term and do not imply the capability to cover continents.

Understanding these distinctions is crucial for recognizing the appropriate network types for various geographical coverage needs.