答案C
1)This worry in your mind can make your body feel bad.
make your body feel bad意为“使你感到身体不适”.表示“使”或“让”时make可以接不带to的动词不定式作其宾语补足语.例如:
◆ Who made you do the work?
是谁让你干这活的?
◆ David made her feel loved.
大卫使她感到被爱.
2)in one's mind
是在脑海中,在意识里,在某人心中
3)problem指实质性问题,不能和in one's mind连用
trouble指实际烦恼,也不能和in one's mind连用.
matter指事实,事情,也不能和in one's mind连用.
worry指心里担心的,心里焦虑的,所以是唯一和in one's mind可以连用的单词.