Refer to the Figure Below

Multiple Choice

Refer to the figure below. The Cnidaria are simple marine animals that have either of the two basic body plans shown in the figure.You may be familiar with sea anemones, which have the body plan shown on the left, and you are likely familiar with jellyfish, which have the body plan shown on the right.What feature shared by both of these cnidarians could have been important in providing the conditions that enabled the rise of multicellularity on Earth?

A) Marine habitat
B) Tentacles
C) Shared mouth and anus
D) Separate internal and external layers
E) Symmetrical body shape