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
Forceps delivery is indicated in all of the following conditions, except 
Select and explain. 
A. Face presentation, B. Occipitoposterior, C. After warming head in breech, D. Brow presentation
D: Brow presentation
Answer: D: Brow presentation 
Explanation: In brow presentation, the engaging diameter of head is mentoveical (14cm) . In this case vaginal delivery is impossible and elective caesarean section is usually performed.