求助prep07 第一套134. (31696-!-item-!-188;#058&004702)

原题如下
134. (31696-!-item-!-188;#058&004702) Among lower-paid workers, union membersare less likely than nonunion members to be enrolled in lower-end insurance plans imposingstricter limits on medical services and requiring doctors to seemore patients, and spend less time witheach. (A) imposing stricter limits on medicalservices and requiring doctors to see more patients, andspend(B) imposing stricter limits on medicalservices, requiring doctors to see more patients, andspending(C) that impose stricter limits onmedical services, require doctors to see more patients, and spend(D) that impose stricter limits onmedical services and require doctors to see more patients,spending(E) that impose stricter limits onmedical services, requiring doctors to see more patients andspending
答案选的是第四项但是spending在句尾做状语的话逻辑主语不应该是主句主语么。那样岂不就是unionmembers了么。。。这样不是不对么。。。07语法笔记中写的是做see的伴随状语，但是难道真的可以做主句中一个定语从句的的伴随么？这样也可以？