UPDATED FOR TAX YEAR 2019
She does not need to file a return (from the info provided in your question).
She would have to file a return in the following circumstances:
If she does file a return (to get back any withholding), be sure she indicates that someone else (you) claimed her as a dependent.
[Edited | 4/8/2020 | 12:11pm PDT]
UPDATED FOR TAX YEAR 2019
She does not need to file a return (from the info provided in your question).
She would have to file a return in the following circumstances:
If she does file a return (to get back any withholding), be sure she indicates that someone else (you) claimed her as a dependent.
[Edited | 4/8/2020 | 12:11pm PDT]