A bar produces a lateral strain of magnitudes $60\times 10^{-5}$m/m when subjected to a tensile stress of magnitude 300 MPa along the axial direction. What is the elastic modulus of the material if the Poisson’s ratio is 0.3 ?
(a) 200 GPa (b) 150 GPa
(c) 125 GPa (d) 100 GPa