This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intracranial Space Occupying Lesion, Subject name: Medicine
A previously healthy 30-year-old man has been unable to open his right eye.Which of the following cranial nerves is most likely to be affected? 
Select and explain. 
A. 3, B. 4, C. 6, D. 7
A: 3
Answer: A: 3 
Explanation: Opening of the eye is related to Levator Palpebrae Superioris - IIIrd nerve affected so L.P.S will not be able to function Leading to PTOSIS