Mitochondria and chloroplast are
$(A)$ semi-autonomous organelles
$(B)$ formed by division of pre-existing organelles and they contain $DNA$ but lack protein synthesising machinery.
Which one of the following options is correct?

• A
  $(A)$ is true but $(B)$ is false.
• B
  Both $(A)$ and $(B)$ are false.
• C
  Both $(A)$ and $(B)$ are correct.
• D
  $(B)$ is true but $(A)$ is false.