This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Raised ICP and Brain death, Subject name: Medicine
Which is the most common cranial nerve involved in raised ICP? 
Select and explain. 
A. Abducens, B. Trochlear, C. Trigeminal, D. Facial
A: Abducens
Answer: A: Abducens 
Explanation: A-Abducens= Longest subarachnoid course(so whenever ICP will raise abducens nerve will affect first) B-Trochlear=Longest intracranial route, thinnest, only nerve has dorsal origin C- Trigeminal=Thickest nerve D-Facial= Longest intraosseous route