relation between elastic constants

Question

1. In terms of Poisson’s ratio (μ) the ratio of Young’s Modulus (E) to Shear Modulus (G) of elastic materials is (GATE-ME-94)

(a) 2(1 + μ) (b) 2 (1 – μ)

(c) $\frac{1+\mu }{2}$ (d)  $\frac{1-\mu }{2}$