Question

It is not an idea____ the community can  unite.On the contrary,I see it as one that will
divide us.?

A．that	B．which?
C．around that	D．around which?

Answer 1

D?

  考查定语从句。从结构上看idea是先行词，首句句意为：这不是一个凝聚人心的思想，即：它不能把人们团结在它的周围。因此选around which。