Which of the Following Is NOT True Regarding Cations and Anions

Which of the following is NOT true regarding cations and anions?

A) N^3- represents a nitrogen atom that has gained three electrons.
B) An oxygen molecule can lose an electron to form O₂^-.
C) Ca^{2 -}represents a calcium atom that has lost two electrons.
D) The formation of a chlorine anion can be written as Cl+ e^- $\rightarrow$ Cl^-.
E) N₂ $\rightarrow$ N₂ +e ^- describes a nitrogen molecule forming a +1 cation.