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: Biochemistry
[{'content': 'Synthesis of protein occurs on: \nSelect and explain. \nA. Mitochondria, B. Poly ribosomes, C. Nucleus, D. Golgi bodies', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]