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: Anatomy
[{'content': 'The retina is an out growth of the : \nSelect and explain. \nA. Mesencephalon, B. Diencephalon, C. Telencephalon, D. Pons', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Diencephalon - Forebrain (prosencephalon) consists of telencephalon (anterior or rostral pa) and diencephalon (posterior or caudal pa). - Telencephalon forms cerebral hemisphere and their cavities -- lateral ventricle and pa of 3rd ventricle- Diancephalon forms - optic cup & stalkQ, pituitary, thalmus, hypothlmus, epithalmus, pineal gland (or epiphysis), & 3rd ventricle (most pa)- Retina develops from walls of optic cupQ. The outer thinner layer becomes retinal pigmented epithelium and inner thicker layer forms neural layer of retina.', 'role': 'assistant'}]