To test the relationship between the orbital period T of a satellite and the radius R of its nearly circular orbit around Earth, a student plans to graph measured data so that the resulting plot is a straight line passing through the origin. Which of the following pairs of quantities should the student plot on the vertical and horizontal axes, respectively, to achieve this goal?
(a) T versus R
(b) T2 versus R
(c) T2 versus R3
(d) T2 versus R2