Answer:
C
Explanation:
So we have a cylinder with a hole the shape of a rectangular prism through it.
Therefore, our total volume would be the cylinder minus the volume of the rectangular prism.
The volume of a cylinder is given by the formula:

Use 3.14 for π, 10 for radius, and 15 for the height. Thus:

So the volume of the cylinder is 4710 cubic feet.
Now, find the volume of the rectangular prism.
The formula for the volume of a rectangular prism is given by:

The length is 5, width is 3, and height is 15. Thus:

So, the total volume is:

Our answer is C