Which of these reactions is not a part of the breakdown of ozone in the stratosphere?

• A
  $Cl\dot{O}_{(g)} + O_{(g)} \longrightarrow \dot{Cl}_{(g)} + O_{2(g)}$
• B
  $\dot{Cl}_{(g)} + O_{3(g)} \longrightarrow Cl\dot{O}_{(g)} + O_{2(g)}$
• C
  $2Cl\dot{O} \longrightarrow ClO_{2(g)} + Cl_{(g)}$
• D
  $CF_2Cl_{2(g)} \stackrel{uv}{\longrightarrow} \dot{Cl}_{(g)} + \dot{C}F_2Cl_{(g)}$