The enthalpy change for the adsorption process and micelle formation respectively are

• A
  $\Delta H_{\text{ads}} < 0$ and $\Delta H_{\text{mic}} > 0$
• B
  $\Delta H_{\text{ads}} < 0$ and $\Delta H_{\text{mic}} < 0$
• C
  $\Delta H_{\text{ads}} > 0$ and $\Delta H_{\text{mic}} < 0$
• D
  $\Delta H_{\text{ads}} > 0$ and $\Delta H_{\text{mic}} > 0$