I always think ___my aunt

I always think ___my aunt
----I always think ___my anut.
----I know her.She is a kind lady and she always thinks ____ others.
A.of,about
B.about,on
C.of,for
D.about,of

应该选C think of 意思为想起,第一句意思,我总是想起我的阿姨 第2句意思是,她总是替别人考虑,想着别人,for这里是做others的介词,为了其他人 think about 是思索的意思,与题意不符 think on 没有这样的表达