ANSWER B C D AND E ONLY PLEASEEE

$($b$)$ Write the complete and balanced equation for the reduction half reaction in $(a.$

$($c$)$ Construct a Frost diagram for vanadium by using this data.

$($d$)$ Give the most stable species in basic solution.

$($e$)$ Do you expect any vanadium species to disproportionate? If yes, write the equation