What Allows an Earthworm to Move Through Soil

Multiple Choice

What allows an earthworm to move through soil?

A) Antagonistic pairs of muscles that pull in opposition to one another using elements of an endoskeleton
B) Alternating contractions of circular and longitudinal muscles that push against elements of an endoskeleton
C) Contracting muscles attached to apodemes of an exoskeleton
D) Contractions of muscles that increase pressure on body fluids to extend the body forward
E) Shifting of body fluids from one compartment to another