Calculate the Lattice Energy of Magnesium Chloride from the Following

Multiple Choice

Calculate the lattice energy of magnesium chloride from the following data: First ionization energy of Mg: 738 kJ/mol
Second ionization energy of Mg: 1,451 kJ/mol
Electron affinity of Cl: 349 kJ/mol
Energy to vaporize Mg: 147.1 kJ/mol
Cl₂ bond energy: 243 kJ/mol
Energy change for the reaction:

A) 1,246 kJ/mol
B) (779 kJ/mol)
C) (2,492 kJ/mol)
D) 2,492 kJ/mol
E) (1,246 kJ/mol)