She wanted to join the group of men________ was to explore the m

She wanted to join the group of men________ was to explore the mysteries of the planets.
A、who
B、which
C、whose work
D、their work
【正确答案】：C
【题目解析】：这句话的意思是：她想加入那群人，他们的工作是探索行星。此时用的是定语从句，whose work指代后面的工作内容，所以故选C。