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When Revisit the Child Tax Credit (screenshot below)tax1.JPG

It displays this:

 

tax2.JPG

Why wouldn't she be eligible?  

Please note, based on my standard deductions as, I do get a refund. Is that why child tax credit doesn't apply because I'm getting a refund? what about the additional dependent credit? Does that require a second child to be listed? 

 

Thanks.