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
Congenital hea block develops in fetuses of women suffering from 
Select and explain. 
A. SLE, B. Epilepsy, C. Rheumatoid ahritis, D. Ankylosing spondylitis
A: SLE
Answer: A: SLE 
Explanation: 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)