Let $\mathrm{A}=\left\{1, 2, 3\right\}, \mathrm{B}=\left\{1, 3, 5\right\}.$ If relation R from A to B is given by 

$\mathrm{R}=\left\{\left(1, 3\right), \left(2, 5\right), \left(3,3\right)\right\}.$ Then ${\mathrm{R}}^{-1}$ is

• A

  $\left\{\left(3, 3\right), \left(3, 1\right), \left(5, 2\right)\right\}$

• B

  $\left\{\left(1, 3\right), \left(2, 5\right), \left(3, 3\right)\right\}$

• C

  $\left\{\left(1, 3\right), \left(5, 2\right)\right\}$

• D

  None of these