Each of the following children visits the school nurse on a regular basis. Which of these children would the nurse identify as being at risk for a learning disability and suggest follow-up care?

A. 9-year-old whose parents recently divorced
B. 10-year-old who cannot sit still longer than 15 minutes
C. 12-year-old with a 4000-word vocabulary
D. 11-year-old who scored 102 on an IQ test