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
Eye is deviated laterally and downwards; patient is unable to look up or medially; likely nerve involved is 
Select and explain. 
A. Trochlear, B. Trigeminal, C. Occulomotor, D. Abducent
C: Occulomotor
Answer: C: Occulomotor 
Explanation: Abduction and some depression is spared, therefore the eye is deviated laterally and downward. All adduction, elevation and extorsion is lost, so patient cannot lookup or medially.