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: Physiology
[{'content': "Nissil's granules contains \nSelect and explain. \nA. Mitochondria, B. Golgi bodies, C. Smooth Endoplasmic reticulum, D. Ribosomes", 'role': 'user'}, {'content': "Answer: D \nExplanation: Nissil's granules contains rough endoplasmic reticulum and ribosomes", 'role': 'assistant'}]