Given are statements for certain thermodynamic variables:
$(A)$ Internal energy,volume $(V)$ and mass $(M)$ are extensive variables.
$(B)$ Pressure $(P)$,temperature $(T)$ and density $(\rho)$ are intensive variables.
$(C)$ Volume $(V)$,temperature $(T)$ and density $(\rho)$ are intensive variables.
$(D)$ Mass $(M)$,temperature $(T)$ and internal energy are extensive variables.
Choose the correct answer from the points given below:

• A
  $(C)$ and $(D)$ only
• B
  $(D)$ and $(A)$ only
• C
  $(A)$ and $(B)$ only
• D
  $(B)$ and $(C)$ only