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
Glass ionomer cements are composed of 
Select and explain. 
A. Aluminosilicate powder and phosphoric acid, B. Aluminosilicate powder and polyacrylate, C. Zinc oxide powder and phosphoric acid, D. Zinc oxide powder and polyacrylate liquid
B: Aluminosilicate powder and polyacrylate
Answer: B: Aluminosilicate powder and polyacrylate 
Explanation: Glass-ionomer cement is often known as a biomimetic material, because of its similar mechanical properties to dentine.
Synonyms

Poly (alkenoate) cement
GIC (glass ionomer cement)
ASPA (alumino silicate polyacrylic acid)

Ref: Mannapalli ed 3 pg 67