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: Ophthalmology
Down and out deviation of eyeball is due to Paralysis of which cranial nerve 
Select and explain. 
A. 2, B. 3, C. 6, D. 9
B: 3
Answer: B: 3 
Explanation: Down and out deviation is due to 3rd nerve palsy due to unopposed action of lateral rectus and superior oblique.