A local area network is: A. a large central network that connects other networks in a distance spanning exactly 5 miles. B. a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information such as a set of rooms, a single building, or a set of well-connected buildings. C. a network spanning a geographical area that usually encompasses a city or county area (3 to 30 miles). D. a network spanning a large geographical area (up to 1000s of miles). E. a network spanning exactly 10 miles with common carrier circuits.