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
[{'content': 'Cranial Nerve which emerges from dorsal surface of brain \nSelect and explain. \nA. II, B. IV, C. VI, D. VII', 'role': 'user'}, {'content': "Answer: B \nExplanation: B i.e. Trochlear Nerve i.e. IVth C.NNerveFeatureTrochlear (4th)Emerge dorsally from the brain stem (2Longest Intracranial course Trigeminal (5th)Largest cranial nerve Vagus (10th)Most extensive distribution Facial (7th)Most commonly paralyzed Facial (715)Longest intraosseous course Abducent (6'h)Most commonly involved in raised ICTOcculomotor (3,d) & Abducent (6th)Commonly involved in inracranial aneurysm.", 'role': 'assistant'}]