Select the correct answer.
The volume of a cone is `V = 1/3 pi r^3 h`. The height of the cone is 8 inches and the radius is 4 inches. Estimate the volume of the cone when the radius is decreased 0.3 inches and the height remains constant.
A.
415.58 cu. in.
B.
415.69 cu. in.
C.
424.36 cu. in.
D.
424.6 cu. in.