［求助］曼哈顿语法中关于修饰语的一个问题

MosenBanana

第六条讲解修饰语的时候有三个例句：
Wrong: George Carlin, both shocking and entertaining audiences across the nation. who also struggled publicly with drug abuse, influenced and in- spired a generation of comedians.
Better: Both shocking and entertaining audiences across the nation. George Car- lin. who also struggled publicly with drug abuse, influenced and inspired a generation of comedians.
BEST: Both shocking and entertaining audiences across the nation, George Carlin influenced and inspired a generation of comedians.

它给的最佳答案 是去掉了一个从句，可是这样句意不就不完整了吗？ 为什么这样是最佳呢。
求大神指点，实在搞不懂GMAT的最佳。