When the acids; ${\mathrm{HClO}}_3,{\mathrm{H}}_3{\mathrm{BO}}_3,{\mathrm{H}}_3{\mathrm{PO}}_4$ are arranged in order of increasing strength, which order is correct?

The acidic nature of the associated oxoacid grows as the oxidation number of a specific halogen atom rises.

According to increasing acid strength, there are:

${\mathrm{H}}_3{\mathrm{BO}}_3<{\mathrm{H}}_3{\mathrm{PO}}_4<{\mathrm{HClO}}_3$