This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Histology, Subject name: Anatomy
[{'content': "Hassall's corpuscles are found in- \nSelect and explain. \nA. Lymph nodes, B. Spleen, C. Liver, D. Thymus", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Thymus o The dominant feature of medulla of thymus is its epithelial components, which are onion like structures called Hassall's Corpuscles, which have an intensely eosinophilic core of dead material,", 'role': 'assistant'}]