Three students are designing and testing parachutes to help decrease the speed at which objects hit the ground. They construct parachutes made of three different materials. Each parachute has the same shape and size. They plan to attach each parachute to an object. When they release each object, they will measure how long it takes to reach the ground. Which data table, if filled in accurately, would be most helpful to the students?
A) Z
B) W
C) Y
D) X