A.Ca10(PO4)5(OH)2 B.Ca10(PO1)6(OH)2 C.Ca8(PO4)6(OH)2 D.Ca8(PO4)5(OH)2 E.Ca10(PO4)3(OH)2
A.7% B.8% C.9% D.10% E.20%
A.60% B.70% C.75% D.80% E.90%