To find the volume of the first cylindric ice cream. Its height is 8 centimeters and its diameter is 4 centimeters. Let's use the formula for the volume of a cylinder.
Replacing the given information, we have.
On the other hand, we use the circular cone formula to find the volume of the second ice cream.
Let's replace the given information.
Then, we subtract the volumes.
Hence, the answer is C.