Step 1: Identify the relevant information in the passage. The passage states, "Metropolitan city regions offer the benefits of localisation, urbanisation and net working," directly addressing the question.
Step 2: Match with the options. Option D (Metropolitan city) aligns with the passage's statement. The other options—Medium sized city (A), Larger city (B), and Rural village (C)—are associated with different types of economies (localisation for medium-sized cities, urbanisation for larger cities, and none specified for rural villages), but only metropolitan cities are explicitly mentioned as offering all three: localisation, urbanisation, and networking.
Step 3: Confirm the answer. Since the passage explicitly names "Metropolitan city regions" as offering these benefits, the correct answer is D.