This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Labour - III, Subject name: Gynaecology & Obstetrics
The engaging diameter in brow presentation is? 
Select and explain. 
A. Mentoveical, B. Submentoveical, C. Suboccipitofrontal, D. Suboccipitobregmatic
A: Mentoveical
Answer: A: Mentoveical 
Explanation: The engaging diameter of Brow presentation is mentoveical - 14 cm