She had golden hair when she was a child......

She had golden hair when she was a child,but _____ she got older and older,her hair went darker and darker.
A.while
B.when
C.after
D.as

请问是选B吗？如果不是为什么不选B呢？那又为什么选那个呢？

She had learnt to suffer without complaining. 一道高中英语选择题(She had a tense ) what did she do? she had a haircut. She already had more clothes than she knew ... she went out after she had finished the housework she said she had just come back from holiday She told me she had just made a new film She had special books with letters she could touch. she had demaned to know whose the child was. Mother ( ) me that she had bouhgt a dictionary for me