Consider a compound $$\mathrm{CsXY_2}$$ where X and Y are halogens. Which statements are correct,
(i) X and Y have different oxidation states,
(ii) for Y with lower atomic number than X, X can assume oxidation states higher than normal,
(iii) such compounds exist because $$\mathrm{Cs^+}$$ has a high charge to size ratio.

A

Only (i)

B

(i) and (ii)

C

Only (ii)

D

(i) and (iii)