以下句子没有任何错误的是()。
A. The scientists are trying out the new medicine to see how well it works.
B. For such a famous, wealthy man, his personally life was surprisingly simple.
C. Their family was quite different from my own, yet I felt at home with them immediately.
D. Most athletes are at their best during their youth
出自:国家开放大学管理会计案例