Which of the following is true with respect to 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 $