This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amniotic Fluid Dynamics, Subject name: Gynaecology & Obstetrics
A pregnant woman is found to have excessive accumulation of amniotic fluid. Such polyhydramnios is likely to be associated with all of the following conditions, except: 
Select and explain. 
A. Twin pregnancy, B. Anencephaly, C. Esophageal atresia, D. Bilateral renal agenesis
D: Bilateral renal agenesis
Answer: D: Bilateral renal agenesis 
Explanation: B/L Renal agenesis causes oligohydramnios Polyhydramnios: - Liqour more than 25 on the AFI or - Single deepest pocket > 8 cm Causes Diabetes Twin pregnancy Cleft lip/palate Duodenal atresia Esophageal atresia Neural tube defects Gastroschisis