Which of the following statements is true about the valence electrons of these two elements?

a) Cesium has more valence electrons and they are in a higher energy level than
calcium's valence electrons.

b) Cesium has fewer valence electrons but they are in a higher energy level than
calcium's valence electrons.

c) Cesium has more valence electrons and they are in a lower energy level than
calcium's valence electrons.

d) Cesium has fewer valence electrons and they are in a lower energy level than
calcium's valence electrons.