Which of the following facts are correct for the plot shown below for 

${\mathrm{H}}_2\left(\mathrm{g}\right)+{\mathrm{I}}_2\left(\mathrm{g}\right)\rightleftharpoons 2\mathrm{HI}\left(\mathrm{g}\right)?$

Equilibrium can be attained from both sides.

Right part shows decomposition of HI(g) to produce ${\mathrm{H}}_2$(g) and ${\mathrm{I}}_2$(g).

Left part shows reaction of  ${\mathrm{H}}_2$(g) and  ${\mathrm{I}}_2$(g) to produce HI(g).

All of the above