If $\mathrm{A}=\left\{1, 2, 3, 4, 5\right\}, \mathrm{B}=\left\{2, 4, 6\right\}, \mathrm{C}=\left\{3, 4, 6\right\},$ then $\left(A\cup B\right)\cap C$ is

• A

  $\left\{3, 4, 6\right\}$

• B

  $\left\{1, 2, 3\right\}$

• C

  $\left\{1, 4, 3\right\}$

• D

  None of these