Answer:
B. Prior to cell specialization
Step-by-step explanation:
Ability of a cell to differentiate into other cell types is called as its potency. A totipotent cell has can differentiate into whole individual as it has ability to give rise to all the parts of the multicellular organism. A cell has higher degree of potency before its differentiation. Once the cells are differentiated into specific cell types, they lose their potency.