The value of modulus of elasticity for mild steel is of the order of:

(a) \(2.1 \times 105 \mathrm{~kg} / \mathrm{cm}^{2}\)

(b) \(2.1 \times 106 \mathrm{~kg} / \mathrm{cm}^{2}\)

(c) \(2.1 \times 107 \mathrm{~kg} / \mathrm{cm}^{2}\)

(d) \(2.1 \times 108 \mathrm{~kg} / \mathrm{cm}^{2}\)