A sportsman runs around a circular track of radius $r$ such that he traverses the path $A B A B$. The distance travelled and displacement, respectively, are

• A

  $2 \mathrm{r}, 3 \pi \mathrm{r}$
• B

  $3 \pi r, \pi r$
• C

  $\pi r, 3 r$
• Correct answer
  D

  $3 \pi r, 2 r$

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