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: Surgery
[{'content': 'In which one of the following conditions Dactylitiscan not be seen- \nSelect and explain. \nA. Sickle - cell anemia, B. Beta thalassemia, C. Congenital syphilis, D. Tuberculosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]