Lophotrochozoans Differ from Ecdysozoans in That

Lophotrochozoans differ from ecdysozoans in that

A) lophotrochozoans grow their skeletons continuously, while ecdysozoans shed their external skeletons to grow.
B) lophotrochozoans exhibit segmentation, while ecdysozoans do not.
C) lophotrochozoans have pseudocoeloms, while ecdysozoans have coeloms.
D) lophotrochozoans undergo protostome development, while ecdysozoans undergo deuterostome development.