For Which of the Following Reactions Is the Enthalpy Change $\rarr$

Multiple Choice

For which of the following reactions is the enthalpy change equal to the third ionization energy of vanadium

A) V²⁺(g) $\rarr$ V³⁺(g) + e^-
B) V³⁺(g) + e^- $\rarr$ V²⁺(g)
C) V(g) $\rarr$ V³⁺(g) + 3e^-
D) V^2-(g) + e^- $\rarr$ V^3-(g)
E) V³⁺(g) $\rarr$ V⁴⁺(g) + e^-