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
Aipha fetoproteins are not increased in : 
Select and explain. 
A. Spina bifida, B. Post maturity, C. Esophageal atresia, D. Anencephaly
B: Post maturity
Answer: B: Post maturity 
Explanation: Post maturity