A.Ectoderm, mesoderm and endoderm layers
B.Ectoderm layer surrounding the blastocoel
C.Ectoderm and endoderm layers forming archenteron
D.Ectoderm, mesoderm and endoderm layers alongwith a rudimentary nervous system
A.Ectoderm, mesoderm and endoderm layers
B.Ectoderm layer surrounding the blastocoel
C.Ectoderm and endoderm layers forming archenteron
D.Ectoderm, mesoderm and endoderm layers alongwith a rudimentary nervous system