The $P-V$ diagram shown below indicates two paths along which a sample of gas can be taken from state $A$ to state $B$. The energy equal to $5 PV$ in the form of heat is required to be transferred if the Path-$1$ is chosen. How much energy in the form of heat should be transferred if Path-$2$ is chosen?

• Correct answer
  A

  $\frac{11}{2}PV$
• B

  $6PV$
• C

  $\frac{9}{2}PV$
• D

  $7PV$

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