TOEFL Listening: TPO-TOEFL阅读TPO - 58S468SQ2_1XO128N$

According to paragraph 4, what choice did Middle Eastern merchants and artisans have that many other people have not had? A. If they were unhappy in the mercantile environment , they could draw on personal connections to find a different kind of work. B. They were allowed to assert their opinions without having to listen to aristocratic professions of moral superiority. C. Following the example of the pastoralists ,they could demand, and receive, better working conditions D. If they didn't like environment, they could move somewhere else.