When the ozone layer in the upper atmosphere is depleted, Earth’s natural shield against harmful ultraviolet radiation is weakened. Which compound would lead to the greatest depletion of the ozone layer?
- A$\text{CCl}_3\text{F}$
- B$\text{CF}_4$
- C$\text{CHClF}_2$
- D$\text{CH}_2\text{F}_2$