Which type of network is characterized by covering large geographic areas like cities and connecting office buildings?

The correct answer is characterized by large geographic coverage, such as cities, and the ability to connect various office buildings over considerable distances. This type of network is designed to facilitate communication across different locations that may be far apart, allowing for the integration of multiple Local Area Networks into a broader system.

A Metropolitan Area Network (MAN) would also cover areas like cities, but it is typically restricted to a specific urban area, connecting multiple local networks within that region. This is distinct from a Wide Area Network (WAN), which can span across cities, states, or even countries, showcasing a greater range that makes it suitable for connecting buildings that are geographically dispersed.

The other choices, like Local Area Network and Personal Area Network, do not fit the description since they are limited to much smaller scales, focusing on networks within a single building or a small room, respectively. Thus, a network that covers large geographic areas like cities and connects various office buildings is best identified as a Wide Area Network.