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
Nerve carrying motor component of light reflex 
Select and explain. 
A. 3rd nerve, B. 1st nerve, C. 2nd nerve, D. 4thnerve
A: 3rd nerve
Answer: A: 3rd nerve 
Explanation: Efferent pathway consists of parasympathetic fibres which arise from the Edinger -Westphal nucleus in the midbrain and travel along the third cranial nerve .
i.e, occulomotor nerve.