GWD一道题目，请教下~

白菜白菜

Q8:
Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system’s ability to deal with all other pollutants.

A. an especially serious pollutant because it diminishes the respiratory system’s ability to deal
B. an especially serious pollutant because of diminishing the respiratory system’s capability of dealing
C. an especially serious pollutant because it diminishes the capability of  the respiratory system in dealing
D. a specially serious pollutant because it diminishes the capability of  the respiratory system to deal
E. a specially serious pollutant because of diminishing the respiratory system’s ability to deal




答案是A 但是我不明白C哪里不合适。似乎system是无生命的物体，用'S不如用OF合适。所以我就选了C。。。

jeffery2541

it diminishes the capability of  the respiratory system in dealing
C中的in搭配不对。