Choose the correct statements from the following

A. All group 16 elements form oxides of general formula $\mathrm{EO}_2$ and $\mathrm{EO}_3$, where $\mathrm{E}=\mathrm{S}, \mathrm{Se}, \mathrm{Te}$ and $\mathrm{Po}$. Both the types of oxides are acidic in nature.

B. $\mathrm{TeO}_2$ is an oxidising agent while $\mathrm{SO}_2$ is reducing in nature.

C. The reducing property decreases from $\mathrm{H}_2 \mathrm{~S}$ to $\mathrm{H}_2$ Te down the group.

D. The ozone molecule contains five lone pairs of electrons.

Choose the correct answer from the options given below: