Answer:
Rett syndrome is a rare neurological disorder that primarily affects girls and leads to severe physical and cognitive impairments. The progression of Rett syndrome can vary from person to person, but by the time a girl with Rett syndrome reaches late childhood (ages 9 to 12), she may typically experience:
B. The child will not be able to walk or speak.
In late childhood, individuals with Rett syndrome often have lost the ability to walk and speak, and they may have significant motor and communication impairments. It's important to note that Rett syndrome is a progressive disorder, and the loss of skills and function is a characteristic feature as the condition advances. This is a challenging condition, and individuals with Rett syndrome often require specialized care and support to maintain their quality of life.
Step-by-step explanation: