Read the excerpt from paragraph 10.
(10) While gasoline cars had promise, they weren't without their faults. They required a lot of manual effort to drive -- changing gears was no easy task and they needed to be started with a hand crank, making them difficult for some to operate. They were also noisy, and their exhaust was unpleasant.
What best describes the purpose of the hand crank in gasoline-powered cars?
A.
It made driving the car a smoother experience.
B.
It was used to help change gears.
C.
It made the car's engine less noisy.
D.
It was required to get the car to operate.
