A survey was carried out on the death rate of those who were infected by SARS _ were surp

问题补充：

A survey was carried out on the death rate of those who were infected by SARS, _ were surprising.A. as resultsB. which resultsC. the results of itD. the results of which

答案：

the results of which 等于whose results，是非限制性定语从句。