This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'Period of disease initiation to disease detection is called \nSelect and explain. \nA. Window period, B. Generation period, C. Lead time, D. Latent period', 'role': 'user'}, {'content': "Answer: D \nExplanation: The term latent period is used in non-infective diseases; it's equivalent in infective diseases is known as incubation period. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 107", 'role': 'assistant'}]