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: Anatomy
Largest cranial nerve is: 
Select and explain. 
A. Trochlear, B. Trigeminal, C. Oculomotor, D. Vagus
B: Trigeminal
Answer: B: Trigeminal 
Explanation: Trigeminal