【求教】og12, 134

134.  Recently implemented “shift-work equations” based on studies of the human sleep cycle have reduced sickness, sleeping on the job, fatigue among shift workers, and have raised production ef?ciency in various industries.
(A)     fatigue among shift workers, and have raised
(B)     fatigue among shift workers, and raised
(C)     and fatigue among shift workers while raising
(D)     lowered fatigue among shift workers, and raised(C)
(E)     and fatigue among shift workers was lowered while raising

我的问题是，选D是否可以，这个equations有三个作用，1.reduce sickness，2.lower fatigue，3.raise efficiency
lower作为动词为什么要跟着第一个reduce呢？og的解释不能说服我。
请各位一起讨论下。