单选题 The librarian was very proud because _______.A. he thought it was the best job to work in a libraryB. the young man followed his adviceC. the young man didn't like the book about Greek history
【正确答案】 B
【答案解析】[解析] 根据文章中间的内容，他因为男孩借书而自豪，以为男孩听取了他的建议。故本题答案是B。