单选题 When prisoners were selected for the work______
【正确答案】 B
【答案解析】本题询问挑选犯人参与考古工作的细节,可在文章第二段的末尾找到相关语句“the men were carefully selected for their good conduct",说明挑选的都是表现良好的囚犯,也就是说考虑了他们以往的行为。