This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'The length of esophagus in adult is - \nSelect and explain. \nA. 10 cm, B. 15 cm, C. 20 cm, D. 25 cm', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 25 cm * Esophagus is 25 cm long.Length of oesophagusIn adults25 cmAt birth8-10 cmAt 15 years of age19 cm", 'role': 'assistant'}]