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
Which is the commonest diameter of engagement: 
Select and explain. 
A. Suboccipitofrontal, B. Mentoveical, C. Occipito frontal, D. Submento veical
A: Suboccipitofrontal
Answer: A: Suboccipitofrontal 
Explanation: Suboccipitofrontal