Choose the correct statement$(s)$:
$(A)$ The position of the centre of mass of a system is dependent on the choice of coordinate system.
$(B)$ Newton's second law of motion is applicable to the centre of mass of the system.
$(C)$ Internal forces cannot change the state of the centre of mass.
$(D)$ Internal forces can change the state of the centre of mass.

• A
  Both $(A)$ and $(B)$ are correct
• B
  Both $(B)$ and $(C)$ are wrong
• C
  Both $(A)$ and $(C)$ are wrong
• D
  Both $(A)$ and $(D)$ are wrong