The correct answer is C) comprise several edge cities with independent business cores. The modern urban areas have central city and multiple other edge cities around it, even though the central city is the biggest and most influential, all of the edge cities have separate business cores and all institutions needed for an urban area. They are in very close proximity to the central city and are well connected in every department.
Sparta was known for their extreme war skills and judging by history Athens was a capital city and most of the soldiers of Greece came from Sparta I guess
