Which of the following is true in respect of chemical adsorption?

• A
  $\Delta H < 0, \Delta S > 0, \Delta G > 0$
• B
  $\Delta H < 0, \Delta S < 0, \Delta G < 0$
• C
  $\Delta H < 0, \Delta S > 0, \Delta G < 0$
• D
  $\Delta H < 0, \Delta S < 0, \Delta G > 0$