It is still in question ______ a can of coke could stop thirst but ______ no doubt that it can make one _____.

[      ]

A. if; there is ; refreshed

B. whether ; it is ; refresh

C. that ; there is ; refresh

D. whether ; there is ; refreshed

请根据材料，整理自己的感悟和思考，围绕当代青年应如何承担社会责任写一篇评论性文章。 [要求] 观点鲜明，主题明确，分析合理，论述深刻，语言流畅，字数1000字左右。