根据语篇内容， 选择最佳选项。There is a Chinese idiom(习语)" taolimantianxia", referring to a teacher who has taught so many students that they spread across the country like peach and plum(李子) trees. Why are students compared to these two types of trees?
The id iom comes from Zizhi, an official( 大臣) who lived in the state of Wei during the Spring and Autumn Period(BC770-BC476). Zizhi was a knowledgeable person. But he was not well liked by the king at the time, so he had to leave his state. To make a living, he opened a private school and started to teach students.
As a teacher, Zizhi was kind and wise. He chose students regardless of(不论) their wealth or social status(社会地位). He often pointed at a peach and a plum tree in his yard when asking his students to work hard." You should become a useful person and do work to benefit(使受益) society, just like when the peach and plum trees bloom and yield(产出) fruit," he said.
Keeping these words in their minds, many of Zizhi's students went on to different places around the country, achieving great things along the way. They would plant peach and plum trees to show their respect for their teacher.
When Zizhi traveled around the country and saw his students and the trees they planted, he was very pleased." My students are like peach and plum trees. They are everywhere, and they have achieved great results."
Since then," peach and plum trees" has been used to refer to students who have been successful in their post- study careers.
