For which reaction is Ml (enthalpy change) most nearly equal to $\mathrm{\Delta }E$ (internal energy change)?

The reaction given in option B,

${\mathrm{Cl}}_2\left(g\right)+{\mathrm{F}}_2\left(g\right)⟶2\mathrm{ClF}\left(g\right)$

For this reaction, enthalpy change is much equal to that of internal energy change.