Consider the following statements:

I. Bleaching action of Cl₂ is due to oxidation of coloured substances

II. HOCl > HOBr > HOI : Acidic strength

III. CIF3 < BrF3 < IF3 : Polarity

Choose the correct statements.

Statement I: Acid strength increases in the order given as

$\mathrm{HF}<<\mathrm{HCl}<<\mathrm{HBr}<<\mathrm{HI}$

Statement II:
As the size of the elements $\mathrm{F}, \mathrm{Cl}, \mathrm{Br}, \mathrm{I}$ increases down the group, the bond strength of $\mathrm{HF}, \mathrm{HCl}$ $\mathrm{HBr}$ and HI decreases and so the acid strength increases.

In the light of the above statements, choose the correct answer from the options given below.