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: Pediatrics
[{'content': 'Maternal Antibody responsible for heartblock in a baby born to mother suffering from SLE \nSelect and explain. \nA. Anti-La antibody, B. Anti-dsDNA antibody, C. Anti-Ro antibody, D. Anti-La antibody', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Anti-Ro antibody crosses placenta and affects conducting system of fetal heart leading to Heart block.', 'role': 'assistant'}]