Given that bond energies of H-H and Cl-Cl are 430 kJ mol⁻¹ and 240 kJ mol⁻¹ respectively, and ΔHf for HCl is -90 kJ mol⁻¹, the bond enthalpy of HCl is:
A. 90 kJ mol⁻¹
B. 170 kJ mol⁻¹
C. 260 kJ mol⁻¹
D. 320 kJ mol⁻¹