Which of the following are important cycles of catalytic destruction of ozone in stratosphere ?
A. $\text{CO} / \text{CO}_2$
B. $\text{HO} / \text{HO}_2$
C. $\text{NO} / \text{NO}_2$
D. $\text{Cl} / \text{ClO}$
E. $\text{SO} / \text{SO}_2$
Choose the correct answer from the options given below: