This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro Ophthalmology, Subject name: Ophthalmology
Which of the following is the nucleus for upward gaze? 
Select and explain. 
A. Paramedian pontine reticular formation, B. Nucleus Raphe Magnus, C. Cuneiform nucleus, D. Nucleus of Cajal
D: Nucleus of Cajal
Answer: D: Nucleus of Cajal 
Explanation: Centre concerned with upward gaze are :- Rostral interstitial nucleus of medial longitudinal fasciculus Interstitial nucleus of Cajal Posterior commisure Paramedian pontine reticular formation(PPRF) is the centre for horizontal gaze.