Mr. Reed makes up his mind to contribute all he had to ____ some schools for poor children. [ ]

A. set up

B. setting up

C. have set up

D. having set up

请结合给定资料，以“水源·家园”为题，写一篇议论文。
要求：
1．主旨明确，内容充实，论述深刻。
2．结构完整，条理清晰，语言流畅。
3．字数1000～1200字。