This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': "Which of the following statements about 'Late expanding phase' of emographic cycle is true - \nSelect and explain. \nA. Birth rate is lower than death rate, B. Death rate begins to decline while birth rate remains unchanged, C. Death rate declines more than birth rate, D. High death rate and high birth rate", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Late expanding phase of demographic cycle (third stage) is characterized by a decline in death rate which is greater than the decline in birth rate.', 'role': 'assistant'}]