The correct statement(s) regarding, $$(i) HClO, (ii) HClO_2 (iii) HClO_3$$ and $$(iv) HClO_4$$ is(are)

A

The numberof Cl = O bonds in (ii) and (iii) together is two

B

The number of lone pairs of electrons on Cl in (ii) and(iii) together is three

C

The hybridization of Cl in (iv) is $$sp^3$$

D

Amongst(i) to (iv), the strongest acid is(i)