This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
[{'content': 'Retina is part of- \nSelect and explain. \nA. CNS, B. PNS, C. ANS, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., CNS * Retina is a part of CNS and develops along with CNS.* Retina develops from walls of optic cup. The outer thinner layer becomes retinal pigmented epithelium and inner thicker layer forms neural layer of retina.", 'role': 'assistant'}]