A 10 mm diameter bar of mild steel of elastic modulus 200´109 Pa is subjected to a tensile load of 50000 N, taking it just beyond its yield point. The elastic recovery of strain that would occur removal of tensile load will be
(a) 1.38$\times$10–3 (b) 2.68$\times$10–3
(c) 3.18$\times$10–3 (d) 4.62$\times$10–3