单选题 According to the passage, when stamps were used, the postage would be ______ that in the early 19th century.
【正确答案】 B
【答案解析】[分析] 从文中第三段倒数两句可知使用邮票后只需要派很少的人去送信，因此邮资会比19世纪早期要低。