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: Gynaecology & Obstetrics
[{'content': 'Fetogram of a still born infant is shown below. What is most likely diagnosis \nSelect and explain. \nA. Congenital syphilis, B. Congenital varicella syndrome, C. Congenital Lupus, D. Congenital CMV infection', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Moth-eaten appearnce of femur suggestive of congenital syphilis.', 'role': 'assistant'}]