When the cyclist encounters a steep hill, in order to maintain the same energy consumption and pedaling rate she changes her gear ratio to 0.7. Which of the following statements describes the change caused by the new gear ratio?

(a) The angular speed of the rear gear increases.
(b) The torque exerted on the rear gear wheel increases.
(c) The torque exerted on the front gear wheel increases.
(d) The power delivered to the rear gear wheel increases.