She hasn’t decided with ______ she should first make contact.

She hasn’t decided with ______ she should first make contact.
A、who
B、whom
C、how
D、which
【正确答案】：B
【题目解析】：with用于与make contact搭配。本题使用的短语是make contact with sb。whom在本句中引导的句子做介词with的宾语。由于位于介词后面，所以用宾格形式whom。