If the grade of steel is Fe250, then the expression for moment of resistance of a singly reinforced section is
[ A ] 0.149 fck bd2
[ B ] 0.138 fck bd2
[ C ] 0.125 fck bd2
[ D ] 0.012 fck bd2
[ A ] 0.149 fck bd2
[ B ] 0.138 fck bd2
[ C ] 0.125 fck bd2
[ D ] 0.012 fck bd2