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: Unknown
Longest fetal skull diameter is: 
Select and explain. 
A. Mentovertical, B. Submentovertical, C. Submentobregmatic, D. Occipito-frontal
A: Mentovertical
Answer: A: Mentovertical 
Explanation: Ans-A