This attitude is quite unlike that of Asians ______ expect their friends and family to gather around them and 1ook after them when they are sick.

This attitude is quite unlike that of Asians，______ expect their friends and family to gather around them and 1ook after them when they are sick.

A. that

B. which

C. who

D. whom

请帮忙给出正确答案和分析，谢谢！