This $2100 should have come, in parts, from D's investment, summer earning, W/S, and family contribution. D wants to pay everything herself from her 4 jobs on campus. I felt bad that she is working so much.
So, 大方一回 - "Don't worry about it. I will pay the whole bill for this Q.". Basically, that is all we pay for the whole year for her. She pays her own books, transportations between school and home, and her own new Mac. Her W/S should be enough to pay Winter Q and we will sell part of her investment to pay for Spring Q.
Thank You, 斯坦福.