This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Not Mesodermal in origin is \nSelect and explain. \nA. Respiratory Tract Lining, B. Kidney, C. Hea, D. Occipital bone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Respiratory system* develops from foregut and is endodermal', 'role': 'assistant'}]