TOEFL Listening: TPO-TOEFL阅读TPO - 5NJ5BS25E1ILNTX6N$

According to paragraph 6, how did the mechanical clock affect labor? A. It encouraged workers to do more time-filling busywork. B. It enabled workers to be more task oriented. C. It pushed workers to work more hours every day. D. It led to a focus on productivity.