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': 'Glass ionomer cements are composed of \nSelect and explain. \nA. Aluminosilicate powder and phosphoric acid, B. Aluminosilicate powder and polyacrylate, C. Zinc oxide powder and phosphoric acid, D. Zinc oxide powder and polyacrylate liquid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Glass-ionomer cement is often known as a biomimetic material, because of its similar mechanical properties to dentine.\nSynonyms\n\nPoly (alkenoate) cement\nGIC (glass ionomer cement)\nASPA (alumino silicate polyacrylic acid)\n\nRef: Mannapalli ed 3 pg 67', 'role': 'assistant'}]