Which Statement Best Describes How an Earthworm Moves

Multiple Choice

Which statement best describes how an earthworm moves?

A) It stretches its longitudinal muscles and pushes its fluid-filled body cavity forward.
B) It forms pseudopods that ooze forward or backward.
C) It uses the coordinated beating of many cilia.
D) It alternates contractions of longitudinal and circular muscles.
E) It contracts longitudinal muscles, which puts pressure on the hydrostatic skeleton and causes it to extend.