Which Statement About Crystalline Solids Is False

Which statement about crystalline solids is false?

A) All crystal lattices are three-dimensional repetitions of one of seven types of unit cells.
B) A unit cell is the smallest part of a crystalline lattice that can reproduce the entire crystal structure.
C) The three types of cubic unit cells are simple, body-centered, and face-centered.
D) For a given size atom or monatomic ion, a body-centered cubic lattice has a higher unit cell density than a face-centered cubic lattice.
E) A unit cell can contain nonmetal atoms, metal atoms, monatomic ions, polyatomic ions, or molecules.