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: Anatomy
[{'content': 'Third ventricle is derived from - \nSelect and explain. \nA. Mesencephalon, B. Rhombencephalon, C. Thalamecephalon, D. Telencephalon', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Thalamecephalon Part of brainSubdivisionsCavityo Forebrain (Prosencephalon)o Telencephalon (cerebrum)Cerebral hemisphereo Diencephalon (thalamencephalon) Thalamus, hypothalamus, metathalamus (including medial and lateral genialate bodies), epithalamus, sunthalamus.Lateral ventricle Third ventricleo Midbrain (Mesencephalon)o Crus cerebri, substantia nigra, tegmentum and tectumCerebral aqueducto Hindbrain (rhombencephalon)o Metencephalon pons, cerebellumo Mylencephalon medullaFourth ventricle", 'role': 'assistant'}]