【正确答案】 C

【答案解析】[解析] 画线词restrain为动词，意为“阻止”。A项disallow意为“不允许”；例：Disallow clients from any access to hidden files. 禁止客户访问隐藏文件。B项reduce意为“减少”；例：Some fat people are trying to reduce their weight. 一些肥胖的人在试着减肥。C项prevent意为“阻止”；例：I simply can't prevent them from going their own way. 我压根无法阻止他们按照自己的方式行事。D项confine意为“监禁”；例：He was confined to prison for six years. 他在监狱里关了6年。故选C。