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A work of 2times10^(-2) j , is done on a...

A work of `2times10^(-2)` j , is done on a wire of length 50cm and area of cross-section `0.5mm^(2`) .If the young's modulus of the material of the wire is `2times10^(10)Nm^(-2)` , Then the wire must be
(A) elongated to 50.1414cm
(B) contracted by 2.0mm
(C) stretched by 0.707mm
(D) of length changed to 49.193cm

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