One Form of Silicon Carbide, SiC, Is an Extremely Hard $\degree$

One form of silicon carbide, SiC, is an extremely hard solid that melts at 2730 $\degree$ C and diffracts X-rays.What type of solid is this form of SiC?

A) covalent network solid
B) ionic solid
C) molecular solid
D) metallic solid
E) None of these are correct.