The correct option is D 20x + 23y + 26z = 69
Equation of any plane through the line of intersection of the given planes is
2x+3y+4z+5+λ(x+y+z−6)=0
It passes through (1,1,1)if(2+3+4+5)+λ(1+1+1−6)=0⇒λ=143 and the required equation is therefore, 20x + 23y + 26z = 69.