This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Gynaecology & Obstetrics
[{'content': 'Congenital hea block develops in fetuses of women suffering from \nSelect and explain. \nA. SLE, B. Epilepsy, C. Rheumatoid ahritis, D. Ankylosing spondylitis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Congenital hea block develops almost exclusively in fetuses of women with antibodies to the SS-A or SS-B antigens. (Ref: William's Obstetrics; 25th edition)", 'role': 'assistant'}]