Which One of the Following Is TRUE Regarding Electrons, Shells

Which one of the following is TRUE regarding electrons, shells, and energy?

A) Electrons are located in shells around the nucleus.
B) Electrons are attracted to each other because they have the same charge.
C) In order for an electron to move closer to the nucleus, it must absorb energy.
D) The innermost electron shell has the most potential energy.
E) As an electron moves to a shell further from the nucleus, it loses energy.