Which statement is correct ?

Options

A. `H_(3)PO_(3)` is stronger acid than `H_(3)PO_(4)`
B. `HClO_(4)` is weaker acid then `HCIO_(3)`
C. `HF` is stronger acid than `HCl`
D. `HOCl` is weaker acid than `HOBr`

Explanation

`H_(3)PO_(3)(HO-overset(OH)overset(|)underset(O)underset(||)(P)-OH)` is stronger
`(K_(a)=1.6xx10^(-2))`
than `H_(3)PO_(4)(HO-overset(OH)overset(|)underset(O)underset(||)(P)-OH)` is stronger
`(K_(a)=7.5xx10^(-3))`