A cylindrical canister contains three tennis balls. Assume the tennis balls touch the sides of the canister and the top and bottom with no gaps. If each ball is 2.7 inches in diameter, how much wasted space is in the canister? Round to the nearest hundredth. A) 10.31 in3 B) 15.46 in3 C) 18.04 in3 D) 30.92 in