This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Demography and family planning, Subject name: Social & Preventive Medicine
[{'content': 'In a demographic cycle, Late expanding stage indicates \nSelect and explain. \nA. High bih and death rates, B. Decreasing Death Rate and stationary Bih Rate, C. Decreasing Bih Rate and decreasing Death Rate, D. Low Death Rate and Bih Rate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Death rate declines still fuher and the bih rate tend to fall in third stage of demographic cycle or late expanding stage, but the population continue to grow as bihs exceeds death. Reference : Park&;s textbook of preventive and social medicine, 23rd edition, pg no: 479', 'role': 'assistant'}]