Question

Living in the country has its advantages, ____ freedom from pollution is the best.

Living in the country has its advantages, ____ freedom from pollution is the best.
A. for what B. whose C. of which D. from that
为什么选C,不是B?

Answer 1

C. of which 中的of 表示部分与整体的关系, which 指代advantages.
of which freedom ...=of the advantages freedom ... 其中的一个好处是...
如用whose , 那么whose freedom 则相当于the advantages' freedom ..."好处的自由" 吗? 讲不通.因此只能选C不能选B.
句意: 生活在农村有它的好处,其中,没有污染就是最大的好处.

Answer 2

that不能用来引导非限制性定语从句，并且from和that很少有这个搭配引导从句