Deductions & credits

Thank you very much for your quick response.

Could you help me to understand this requirement "If you are a specified student (other than a qualified former foster youth or a qualified homeless youth), you need to be at least age 24". 

If she is a full time student and age 21, would that make her not meet this requirement?  She answers all of the questions for education tax credit so would the system use that info to determine if she meets the qualification for this requirement?