A child with cerebral palsy (CP) has been fitted for braces and is beginning physical therapy to assist with ambulation. The parents ask why he needs the braces when he was crawling without any assistive devices. What is the nurse's best response?

"The CP has progressed, and he now needs more assistance to ambulate."

"As your child grows, different muscle groups may need more assistance."

"Most children with CP need braces to help with ambulation."

"We have found that when children with CP use braces, they are less likely to fall."