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: Medicine
[{'content': 'True about western blot: \nSelect and explain. \nA. Separation of proteins are based on mass, B. SDS-PAGE electrophesis is used for separation, C. Enzyme linked antibodies are used, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Separation of proteins are based on mass; B i.e. SDS-PAGE electrophesis is used for separation; C i.e. Enzyme linked antibodies are used', 'role': 'assistant'}]