In cnidarians digestion occurs in gastrovascular cavity and then inside the endodermal cells. In sponges the digestion is __ A__ and takes place in __B__ . Correct option for blanks A and B is

• A

  A – extracellular
  B – paragastric cavity

• B

  A – intracellular
  B – choanocytes

• C

  A – extracellular and intracellular
  B – paragastric cavity and choanocytes

• D

  A – intracellular
  B – paragastric cavity