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': 'Cells involved in active protein synthesis have- \nSelect and explain. \nA. Increased mitochondria, B. Increased Rough Endoplasmic reticulum, C. Increased golgi apparatus, D. Increased lysosomes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In Rough endoplasmic reticulum, ribosomes are attached. Protein synthesis can occur in ribosomes and mitochondria. So the answer to this question would be rough endoplasmic reticulum.', 'role': 'assistant'}]