题目内容：
根据以上材料，回答问题。
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 ┠考试大^o^在线^*^考试中心┨
C．he is keen on learning anything new
D．he has tried to determine where he is on his journey( )
参考答案：
答案解析：