以下句子哪个可以用在结尾段?（）
A.From my personal point of view, I agree with the opinion that … B.Man is now facing a big problem ______ which is becoming more and more serious. C.People’s opinions about ______ differ from person to person. Some people say that ______.To them, _____. D.As far as I am concerned, there are some reasons accounting for this phenomenon.正确答案A
