The work to be done to produce a strain of $10^{-3}$ in a steel wire of mass 2.96 kg and density $7.4 \mathrm{~g} \mathrm{~cm}^{-3}$ is (Young's modulus of steel $=2 \times 10^{11} \mathrm{Nm}^{-2}$ )

• Correct answer
  A

  0.04 kJ
• B

  0.04 J
• C

  100 kJ
• D

  400 J

Hence, the correct answer is option: 'A'.