一道Gmat句子改错题 丙型结构

一道Gmat句子改错题 丙型结构
　29.The lawyer for the defense charged that she suspected the police of having illegally taped her confidential conversation with her client and then used the information obtained to find evidence supporting their murder charges .（Z.P.118）
　　A） used the information obtained to find evidence supporting
　　B） used such information as they obtained to find evidence supporting
　　C） used the information they had obtained to find evidence that would support
　　D） of using the information they had obtained to find evidence that would support
　　E） of using such information as they obtained to find evidence hat would be supportive of
我选的是A,但是答案是D.不明白为什么used不能和taped并行?
打错了。并行结构