tatekim

I applied 6 universities for PHD programs, and I got 4 admissions (A,B,C,D). My situation is that only A shcool offered an assistantship officially to me, and they want me to decide whether I accept or not by Mar.21. I am really consufing what if I get funding from other universities (B,C,D) after I accepted the assistnatship offered from A university?? Can I possibly choose another school?? Please let me know I need you guys help!