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
A person has inability to look downward and laterally. The nerve injured is 
Select and explain. 
A. Occulomotor, B. Trochlear, C. Abducent, D. Trigeminal
B: Trochlear
Answer: B: Trochlear 
Explanation: B i.e. Trochlear