Which of the Following Is NOT a Weakness of the IQ-Achievement

Which of the following is NOT a weakness of the IQ-achievement discrepancy method to assess learning disabilities?

A) The IQ-achievement discrepancy method does not reliably differentiate youth with and without learning disabilities.
B) Youth with significant IQ-achievement discrepancies do not show different patterns of cognitive abilities than youth who fall short of the IQ-achievement discrepancy cutoff.
C) Youth with reading problems who do and who do not show significant IQ-achievement discrepancies show similar outcomes.
D) The IQ-achievement discrepancy method is only a valid means of identifying Specific Learning Disorder, not learning disabilities more generally.