Tennis balls are traditionally sold in a cylinder which contains three balls. The volume of space in the cylinder not occupied by a tennis ball is modeled in the following function, where r is the radius of a tennis ball, in inches. Select the true statement in the table below. The factor πr2 represents the volume of the can. The factor 6r represents the width of the can. The term 4πr3 represents the volume of the three tennis balls. The term (πr2)(6r) represents the volume of one tennis ball.