Correct answer: Differentiation
The stem cell is the group of unspecialized cells that become specialized cell by the process called as differentiation. These cells have the great potential to develop into many different types of cell in the body.
These cells divide regularly and help the body to repair and maintain the dead and damaged tissue of the body. because of the differentiation process, the unspecialized cell is able to acquire the cellular traits that allow them to perform a specialized function.
Hence, the correct answer would be ''Differentiation''