Answer:
e,
Step-by-step explanation:
The process is called Embryonic differentiation. It is the process where cells of embryo undergo division to diverse specialised structures of tissues and organs during Embryogeneis (development of embryo).The differentiated cells are pluoripotent embryonic stem cell.
The differentiation is important because different cell types of specific functions are in the embryo. In order to assume their specific functions for embryo developments and identity, they must be differentiated 'that is developed and assigned to perform specific roles.
It is preceded by fertilisation and Cleavage; influenced by the internal factors of cells,as well as, extracellular factors of the cell medium.