I was fortunate enough to travel to South Africa, I met some women who have organized them

I was fortunate enough to travel to South Africa, I met some women who have organized themselves into a group.
A. then
B. there
C. while
D. where

A. thenB. thereC. while(答案→)D. where解析：句意：我非常幸运去了一次南非，在那里我看见了一些结组自助的妇女。考查定语从句，先行词为South Africa，代入从句中为“l met some women… in South Africa．”。

谢谢了