Select the incorrect statement(s) among the following 
a) If  ${\Delta }_0>P$ , it becomes more kinetically favourable for the fourth electron to occupy  $t_{2g}$ orbital with  $t_{2g}^4{e}_g^0$ configuration for  $d^4$ ions 
b) Nature of bonding in co-ordination compound cannot be explain by MOT 
c) Solvated isomerism is a special class of co-ordination isomerism