Mammalian Embryos Can Develop Normally Despite Having Some Blastomeres Removed

Multiple Choice

Mammalian embryos can develop normally despite having some blastomeres removed during early cleavage because

A) in the development of mammals, intercellular signalling is of more importance than cytoplasmic signalling.
B) maternal factors present within the zygote have no influence on the development of mammalian embryos.
C) cell-cell signalling does not become important in mammalian development until after the formation of the blastula.
D) mammalian blastomeres remain unipotent throughout the early stages of cleavage.
E) embryonic stem cells are pluripotent.