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': 'Infected dentine shows \nSelect and explain. \nA. Both organic and inorganic components in reversible form, B. Both organic and inorganic components in irreversible form, C. Organic components in irreversible form and inorganic components in reversible form, D. Inorganic component in irreversible form and organic component in reversible form', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]