This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Incubation period of plasmodium vivax is - \nSelect and explain. \nA. 5-7 days, B. 7-10 days, C. 8-17 days, D. 15-30 dasy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Incubation period For falciparum malaria : 9-14 days Vivax malaria : 8-17 days Quaan malaria : 18-40 days Ovalr malaria : 16-18 days Ref: PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition , page 260', 'role': 'assistant'}]