Silica `(SiO_(2))` can be crystalline as well as amorphes with following properties
(I) it has hight and sharp melting point
(II) Crystalline
(III) The `SiO_(4)^(2)` letrahedral are randomly joined to give polymeric chains or three - demensional sheets
Which of the properties is/are matced with amophous solids?
A. I
B. III
C. I,III
D. II
