$\mathrm{P}-\mathrm{V}$ graph for a cyclic process is shown in figure. Work done is given by

• A

  $\mathrm{\pi }{\mathrm{P}}_0{\mathrm{V}}_0$
• B

  $15{\mathrm{P}}_0{\mathrm{V}}_0$
• C

  $8{\mathrm{P}}_0{\mathrm{V}}_0$
• Correct answer
  D

  $2\mathrm{\pi }{\mathrm{P}}_0{\mathrm{V}}_0$

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