Read the statements and choose the correct option.
$Statement I$: $RNAi$ takes place in all prokaryotic and eukaryotic organisms as a method of cellular defence.
$Statement II$: $RNA$ interference is a pre-translational process.

• A
  $Statement I$ is incorrect, $Statement II$ is correct.
• B
  $Statement I$ is correct, $Statement II$ is incorrect.
• C
  Both statements are correct.
• D
  Both statements are incorrect.