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
The shoest diameter of fetal skull is : 
Select and explain. 
A. Sub occipito frontal, B. Sub mentobregmatic, C. Mento veical, D. Submentoveical
B: Sub mentobregmatic
Answer: B: Sub mentobregmatic 
Explanation: Sub mentobregmatic