Statement A is true as all group 16 elements form \(EO_2\) and \(EO_3\) oxides, and these oxides are generally acidic.
Statement B is true as \(TeO_2\) acts as an oxidising agent, while \(SO_2\) is a reducing agent.
Statement C is false. The reducing nature actually increases as we move down the group.
Statement D is false as the ozone molecule \(O_3\) contains only three lone pairs of electrons on each oxygen atom.