The adsorption of a gas at the boiling point of the gas follows the isotherm shown in the figure. Identify the correct thermodynamic properties at point $C$.

• A
  $\Delta H = T \Delta S, \Delta G = 0$
• B
  $\Delta H > T \Delta S, \Delta G = + \text{ve}$
• C
  $\Delta H < T \Delta S, \Delta G = - \text{ve}$
• D
  $\Delta H = T \Delta S = \Delta G = 0$