Our 23 year old child full time student used money from gifts from us (parents) to pay for clothing, other items, and a car. Did she provide this support or did we?

This is a dependent support test question.  Our daughter is 23 years old.  Graduated college May 2018. Was full time student.  Had part time job during college and full time job starting in June 2018.  She lived at home.  She meets all dependent tests but I am having trouble confirming whether or not she provided more than 50% of her own support.  If she did not then she is dependent and we would get $500 child credit but do not qualify to claim an education credits.  If she did provide more than 50% of her own support then her tax refund would increase by $1,000 due to an education credit.  I did both of our taxes both ways in Turbo Tax to figure this out.  Just want the right answer the I can defend if need be.