Cesium Chloride Crystallizes in a Unit Cell with the Cesium

Multiple Choice

Cesium chloride crystallizes in a unit cell with the Cesium ions in a primitive cubic unit cell arrangement (at the corners) . Given that the formula for cesium chloride is CsCl, where are the chloride ions expected to reside in the unit cell?

A) Along each edge
B) On each face
C) At the center
D) Along each edge, at the center and on each face
E) None of these