Answer:
4/5
Step-by-step explanation:
Answer: Option C.
Step-by-step explanation:
The volume of a sphere can be calculated with this formula:

Where "r" is the radius.
You can observe in the figure that the value of the radius of this sphere is:

Then you can substitute this radius into the formula
.
Therefore, the volume of the sphere shown in the figure is:


You just multiply by 2 as you can see
4×2=8
8×2=16 and so on
64×2=128 therefore 128 is the answer