阅读理解。阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。
(原创)“Did you come alone or with your parents? ”When Tsinghua University’s new 2013 freshmen arrived on campus late last month, the first question they were faced with at the registration desk was the above. According to statistics, we know that more than half of the 539 students came alone. Chen Jining, president of Tsinghua University, encouraged them to “start this new adventure by standing on your own two feet”.