dare的用法：dare用作實義動詞,此時其后的動詞不定式可帶to也可不帶to,且dare有人稱和數(shù)以及時態(tài)的變化.例如：
I dare to jump down from the top of the wall.我敢從那墻頭上跳下來.
She doesn\'t dare (to) meet her teacher\'s eyes.她不敢與老師對視.
2） dare用作情態(tài)動詞,后跟動詞原形,主要用于疑問句、否定句和條件句中.例如：
How dare she do things like that to me?她怎么敢對我做那種事?
-Dare you catch the mouse?你敢去抓那只老鼠嗎?
-I daren\'t do that.我不敢抓.
If you dare say that to our teacher,I would vote for you.如果你敢向我們的老師說那件事,我就投你一票.
所以,這里選c,只有c的第二個dare是情態(tài)動詞.