The capacity of undifferentiated cells to develop into any type of cell in the body of an organism is called:

Correct option is B

Totipotent cells:
Can differentiate into all cell types, including embryonic and extraembryonic tissues (e.g., placenta).
Example: Zygote and early embryonic cells.
Pluripotent cells:
Can form all body cells but not extraembryonic tissues.
Unipotent cells:
Can produce only one cell type.
The ability to form a complete organism is a trait of totipotency.
Correct option: (b).