Consider $\mathrm{I}=\int_0^\pi \frac{x d x}{1+\sin x}$ What is $\int_0^\pi \frac{(\pi-x) d x}{1+\sin x}$ equal to?

• Correct answer
  A

  $\pi$
• B

  $\frac{\pi}{2}$
• C

  0
• D

  $2 \pi$

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