$I.$ In the process of recombinant $DNA$ technology,after several treatments,the purified $DNA$ is precipitated by adding chilled ethanol.
$II.$ The bacterial,plant,or animal cell is broken down by enzymes to release $DNA$,along with $RNA$,proteins,polysaccharides,and lipids.
Choose the correct option for the above statements.

• A
  $I$ is true,but $II$ is false.
• B
  $I$ is false,but $II$ is true.
• C
  $I$ and $II$ are true.
• D
  $I$ and $II$ are false.