Which of the Following Statements Regarding the Solid State Is

Which of the following statements regarding the solid state is incorrect?

A) Many metals follow a close-packing arrangement of their atoms, much like the way fruit is stacked in the grocery store.
B) The forces holding the particles together in a solid will affect their properties.
C) Network solids tend to have very high melting points.
D) Nonpolar molecular solids tend to be good conductors of heat and electricity.
E) Ionic solids tend to be brittle.