Given the Following the Data, What Is the Energy Change $\rightarrow$

Given the following the data, what is the energy change for this reaction? Na(g) + Cl(g) $\rightarrow$ Na⁺(g) + Cl^-(g)

A) -1198.4 kJ mol^-1
B) -146.8 kJ mol^-1
C) +146.8 kJ mol^-1
D) +672.6 kJ mol^-1
E) +1198.4 kJ mol^-1