I was filling out the School choice form when I get to "School Choice Selection" portion of the form. I was looking for the school I want my child to get into, which is Challenge School. But when i was looking through the choices, Challenge school wasn't on the list.
The School Choice forms are designed as per the requirements set by the school district. I recommend reaching out to the Enrollment section of your school district as they should be in a better position to assist you further with this. They can also create a support case with the PowerSchool Enrollment team on your behalf if required.
You can check out the FAQs related to the enrollment process here.