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
Which of the following cardiac condition has highest maternal moality in pregnancy ? 
Select and explain. 
A. MS, B. MR, C. MVP, D. Eisenmenger syndrome
D: Eisenmenger syndrome
Answer: D: Eisenmenger syndrome 
Explanation: Maternal moality associated with Eissenmenger's syndrome is 50%, and is also associated with high perinatal loss. In such cases, termination of pregnancy is indicated. Patients with Eisenmenger's syndrome have pulmonary hypeension with right to left shunt through an open ductus, ASD or VSD. Reference: Textbook of Obstetrics By D.C Dutta, 6e page 282.