Your daughter meets all the tests to be claimed as a dependent by you with only the question of support left for you to determine.
Per the IRS to meet this test, the child cannot have provided more than half of his or her own support for the year.
As long as you paid more than half of what it took for your daughter to live then she meets this test as well. You must look at the cost of food , housing , clothes,.... to make this determination.
Please advise your daughter that she is required to file a return and will want to if she had any withholding but advise her also that if you claim her on your return then it is most important that she does not use her personal exemption on her return. Tell her to mark "YES" that someone else can claim her.
I hope this information is helpful,