Diabetes Diagnosis: Which Criterion is Wrong?

A. Hemoglobin A1C of ≥6.5%

B. 8-hour fasting plasma glucose of ≥126 mg/dL

C. A single random glucose value of ≥200 mg/dL in a patient with obvious hyperglycemia or hyperglycemic crisis

D. 4-hour glucose of ≥200 mg/dL, during an OGT with a glucose load of 75 g anhydrous glucose in water