$\mathrm{B}{\left(\mathrm{OH}\right)}_3+\mathrm{NaOH}\rightleftharpoons {\mathrm{NaBO}}_2+\mathrm{NaB}{\left(\mathrm{OH}\right)}_4+{\mathrm{H}}_2\mathrm{O}$ How can this reaction is made to proceed in forward direction ?
 

• A

  $\text{ Addition of }Cis-1,2-\text{ diol }$

• B

  Addition of Borax

• C

  $\text{ Addition of trans }-1,2-\text{ diol }$

• D

  $\text{ Addition of }{\mathrm{Na}}_2{\mathrm{HPO}}_4$