Answer:
Moderate intellectual disability
Step-by-step explanation:
Ron works as a custodian's helper at a school, under the supervision of the custodian. Ron can read and write his name and can read first-grade books. He moves slowly and sometimes with difficulty.
Ron most likely suffers from a moderate intellectual disability.
Such type of people can communicate in basic and simple ways. They may have physical signs of impairment.
Approximately 10% of people with intellectual disabilities fall into this category.