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: Dental
[{'content': 'The following material with a hemostatic effect can be used as a substitute for Formocresol Pulpotomy \nSelect and explain. \nA. Gluteraldehyde, B. Ferric sulphate, C. Mineral Trioxide Aggregate (MT), D. Freeze-dried bone', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]