Answer: The correct option is (D). 400%.
Step-by-step explanation: Given that the volume for a 3-D polyhedral A is 200 cm³ and the volume for a 3-D polyhedral B is 800 cm³.
We are to find how much bigger is the volume of pyramid B than pyramid A.
The required percentage by which the volume of pyramid B is bigger than pyramid A is given by

Thus, the correct option is (D).