Which Child Would Most Likely Be Labeled "Learning Disabled

Which child would most likely be labeled "learning disabled"?

A) Bob cannot seem to read or write, but his IQ is average.
B) Wendy cannot seem to read or write, and her IQ is well below average.
C) Brandon does relatively well in school, but he has some serious emotional problems.
D) Justin does well in math and other subjects, but his IQ is low average.
E) Lucille has poor social skills and a low average IQ.