Statement-1: Borax bead test can be used for the identification of coloured cations of transition metals.

Statement-2: They give different colored beads with glassy transparent borax bead $({\mathrm{NaBO}}_2+{\mathrm{B}}_2{\mathrm{O}}_3\text{ ) }$.

The Borax Bead test is an option for the identification of transitional cations with color metals, as they produce glassy clear beads of borax with a variety of colorful beads $\left({\mathrm{NaBO}}_2+{\mathrm{B}}_2{\mathrm{O}}_3\right)$. So,statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1. Hence, option A is correct.