In Animal Development, Cleavage Refers to

In animal development, cleavage refers to

A) the dissolving of the egg jelly coat by acrosomal enzymes.
B) the splitting of the mesoderm to form a central, fluid-filled cavity.
C) a series of mitotic divisions of the zygote without any decrease in cell size.
D) a series of mitotic divisions of the zygote without any increase in embryo size.
E) production of blastomeres resulting in increased size of the embryo.