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: Pathology
[{'content': 'Oral Thrush develops in infants at \nSelect and explain. \nA. 6 days, B. 2-6 weeks, C. 10-12 weeks, D. 18 months', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]