$NO+O_3\rightarrow O_2,O_3+hv\rightarrow x+y,NO_2+O\rightarrow z + x$.Net reaction :$A(O_3)+hv\rightarrow BO_2$.The $x$ and $y$ are

Question

$\begin{array}{1 1}(a)\;O_2+O_3\\(b)\;CO_2+CO_3\\(c)\;O_3+HO_2\\(d)\;O+O_2\end{array}$