If $x + y + z = 5, \frac{1}{x}+\frac{1}{y}+\frac{1}{z} = 0, xyz = 12$ and  $x^3 + y^3 + z^3 = 151,$ then the value of $(x^2 + y^2 = z^2)$ is :

24 23 22 21

23