In 1980s atmospheric scientists working in Antarctica reported about depletion of ozone layer commonly known as ozone hole over the South pole. Which of the statements are correct ?

Options

A. In summers, `NO_(2)` and `CH_(4)` react with chlorine monoxide and chlorine atoms forming chlorine sinks, preventing much ozone depletion.
B. In summers, special type of clouds called polar stratospheric clouds are formed over Antarctica.
C. The polar stratospheric clouds provide surface on which chlorine nitrate gets hydrolysed to form hypochlorous acid.
D. Chlorine nitrate also reacts with hydrogen chloride to give molecular chlorine.