If ‘1’ represents extracellular digestion, ‘2’ represents intracellular digestion and ‘3’ represents both types, then select the correct option for Cnidaria, Ctenophora and Porifera.

• A

  1, 2 and 3 respectively

• B

  3, 3 and 2 respectively

• C

  3, 2 and 1 respectively  

• D

  3, 2 and 2 respectively