Which One of the Following Statements Best Explains Why a Neon

Multiple Choice

Which one of the following statements best explains why a neon sign does not emit visible light after it is turned off?

A) All of the neon atoms are ionized.
B) Most of the neon atoms are in the ground state.
C) None of the neon atoms are in the n = 2 state.
D) All of the neon atoms have principle quantum number n = 0.
E) Only some of the neon atoms have returned to the n = 1 state.