Which of the Following About Gastrovascular Systems Is False

Multiple Choice

Which of the following about gastrovascular systems is false?

A) They are found in multicellular aquatic organisms.
B) They consist of a highly branched central cavity.
C) They supplement circulatory systems in small aquatic animals.
D) They bring the external environment into an animal.
E) Larger animals with gastrovascular systems, such as sponges and jellyfishes, tend to be slow or sedentary.