Which of the following orders are correct against the stated property? I) $\mathrm{NaO}_2 < \mathrm{KO}_2 < \mathrm{RbO}_2 < \mathrm{CsO}_2$ - stability II) $\mathrm{Mg}(\mathrm{OH})_2 < \mathrm{Ca}(\mathrm{OH})_2 < \mathrm{Sr}(\mathrm{OH})_2$ - basic strength III) $\mathrm{MgCO}_3 < \mathrm{CaCO}_3 < \mathrm{SrCO}_3$ - thermal stability

• A

  I & III only
• B

  II & III only
• C

  I & II only
• Correct answer
  D

  I,II & III

Hence, the correct answer is option: 'D'.