The radius of a cylinder is increased by a factor of 5. The height is not changed.
What is the effect of the increase on the volume of the cylinder?
A) The volume of the cylinder increases by a factor of 5.
B) The volume of the cylinder increases by a factor of 25.
C) The volume of the cylinder increases by a factor of 15.
D) The volume of the cylinder increases by a factor of 10.