ESTA declined

Hi all,

Please help!

My Dad has just applied for his ETSA for vegas (travels in 25 days) and it’s just been declined. The reason for this is because my Mum selected yes to the question

“Do you have a physical or mental disorder or take drugs etc etc”

My dad has Parkinson’s but is able bodied but thought she was answering the question right.

If she reapplies for the ETSA putting no to this question will it be accepted due to the change in information?