A mass of 100 kg is suspended from a copper rod with square cross section of 0.01 m edge length.Copper has a Young's modulus Y=1.30 x 10¹1 N/m² and a Poisson ratio v=0.35. Using these data,calculate the percentage change in cross section edge length. (It can be assumed that the deformation is small compared to the dimensions of the rod.) Select the correct answer from the following options.