单选题 During his 12 years in Congress he has ______ with the chemical, drug and power companies on behalf of the ordinary person's right to breathe clean air.

【正确答案】 C
【答案解析】空格处讲的是“做斗争，争取”，应用tussle with这个短语。capsize(特指船)倾覆；actuate开动(机械等)，驱使，激励(人等)；fidget坐立不安，使烦乱。可见C项为正确答案。