885- 补充-212

885- 补充-212
Following the destruction of the space shuttle Challenger, investigators concluded that many key people employed by the National Aeronautics and Space Administration and its contractors work an excessive amount of overtime that has the potential of causing errors in judgment.
(A) overtime that has the potential of causing
(B) overtime that has the potential to cause
(C) overtime that potentially can cause
(D) overtime, a practice that has the potential for causing
(E) overtime, a practice that can, potentially, cause

不明白，为什么E里面的“can,potentially”不算redundance,如果是，为什么还要选

potentially 用逗号与 can 隔开了，表示辅助说明 can 的程度，二者的含义不同，不是重复的。

唯一具有可比性的 D 选项 that has the potential for causing 冗长。

嗯，好象可以解释

斑竹newbee,呵呵