最近天气变化无常，一定注意加减衣服，做好身体的管理也是核心竞争力！

　　今天的句子：

　　There are two basic ways to see growth: one as a product, the other as a process. People have generally viewed personal growth as an external result or product that can easily be identified and measured. The worker who gets a promotion, the student whose grades improve, the foreigner who learns a new language — all these are examples of people who have measurable results to show for their efforts.

　　55. A person is generally believed to achieve personal growth when ________.

　　[A] he has given up his smoking habit

　　[B] he has made great efforts in his work

　　[C] he is keen on learning anything new

　　[D] he has tried to determine where he is on his journey

　　来吧选哪一个？