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
ARM is contraindicated in : 
Select and explain. 
A. Placenta pre, B. Hydramnios, C. Accidental hemorrhage, D. Twins
B: Hydramnios
Answer: B: Hydramnios 
Explanation: Hydramnios